./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f9a2fcb1012f2ff72c6593976c4936a90359f50 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:48:50,550 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:48:50,551 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:48:50,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:48:50,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:48:50,562 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:48:50,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:48:50,565 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:48:50,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:48:50,567 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:48:50,568 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:48:50,568 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:48:50,570 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:48:50,571 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:48:50,572 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:48:50,572 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:48:50,573 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:48:50,575 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:48:50,576 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:48:50,578 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:48:50,579 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:48:50,580 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:48:50,582 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:48:50,582 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:48:50,583 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:48:50,583 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:48:50,584 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:48:50,585 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:48:50,586 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:48:50,587 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:48:50,587 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:48:50,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:48:50,588 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:48:50,588 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:48:50,588 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:48:50,590 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:48:50,590 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 09:48:50,603 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:48:50,603 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:48:50,604 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 09:48:50,604 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 09:48:50,604 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 09:48:50,604 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 09:48:50,605 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 09:48:50,605 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 09:48:50,605 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 09:48:50,605 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 09:48:50,605 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 09:48:50,605 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 09:48:50,606 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 09:48:50,606 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:48:50,607 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:48:50,607 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:48:50,607 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:48:50,607 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:48:50,607 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 09:48:50,607 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 09:48:50,608 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 09:48:50,608 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:48:50,608 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:48:50,609 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:48:50,609 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 09:48:50,610 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:48:50,610 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:48:50,610 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 09:48:50,610 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 09:48:50,610 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:48:50,610 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:48:50,611 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 09:48:50,611 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 09:48:50,611 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 09:48:50,611 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 09:48:50,611 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 09:48:50,611 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 09:48:50,612 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_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f9a2fcb1012f2ff72c6593976c4936a90359f50 [2018-11-18 09:48:50,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:48:50,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:48:50,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:48:50,654 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:48:50,655 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:48:50,655 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c [2018-11-18 09:48:50,706 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/data/461ec2b92/5269499d812e46d9953259f314133b05/FLAGff31035d1 [2018-11-18 09:48:51,104 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:48:51,104 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/sv-benchmarks/c/eca-rers2012/Problem14_label07_true-unreach-call_false-termination.c [2018-11-18 09:48:51,115 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/data/461ec2b92/5269499d812e46d9953259f314133b05/FLAGff31035d1 [2018-11-18 09:48:51,129 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/data/461ec2b92/5269499d812e46d9953259f314133b05 [2018-11-18 09:48:51,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:48:51,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:48:51,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:48:51,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:48:51,137 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:48:51,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@788382f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51, skipping insertion in model container [2018-11-18 09:48:51,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:48:51,194 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:48:51,512 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:48:51,515 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:48:51,619 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:48:51,633 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:48:51,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51 WrapperNode [2018-11-18 09:48:51,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:48:51,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:48:51,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:48:51,634 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:48:51,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:48:51,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:48:51,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:48:51,746 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:48:51,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... [2018-11-18 09:48:51,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:48:51,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:48:51,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:48:51,809 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:48:51,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 09:48:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-18 09:48:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 09:48:51,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 09:48:51,868 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-18 09:48:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-18 09:48:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:48:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:48:51,869 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 09:48:51,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 09:48:52,995 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:48:52,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:48:52 BoogieIcfgContainer [2018-11-18 09:48:52,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:48:52,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 09:48:52,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 09:48:52,999 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 09:48:52,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:48:51" (1/3) ... [2018-11-18 09:48:53,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d7d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:48:52, skipping insertion in model container [2018-11-18 09:48:53,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:48:51" (2/3) ... [2018-11-18 09:48:53,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@144d7d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:48:53, skipping insertion in model container [2018-11-18 09:48:53,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:48:52" (3/3) ... [2018-11-18 09:48:53,002 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label07_true-unreach-call_false-termination.c [2018-11-18 09:48:53,009 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 09:48:53,016 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 09:48:53,028 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 09:48:53,056 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 09:48:53,057 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 09:48:53,057 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 09:48:53,057 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:48:53,057 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:48:53,057 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 09:48:53,058 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:48:53,058 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 09:48:53,079 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-18 09:48:53,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 09:48:53,086 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:53,087 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:53,089 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:53,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:53,095 INFO L82 PathProgramCache]: Analyzing trace with hash -989245532, now seen corresponding path program 1 times [2018-11-18 09:48:53,096 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:53,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:53,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:53,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:53,134 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:53,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:48:53,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:53,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:48:53,352 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:53,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:48:53,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:48:53,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:48:53,368 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-11-18 09:48:54,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:54,720 INFO L93 Difference]: Finished difference Result 894 states and 1610 transitions. [2018-11-18 09:48:54,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:48:54,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2018-11-18 09:48:54,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:54,736 INFO L225 Difference]: With dead ends: 894 [2018-11-18 09:48:54,737 INFO L226 Difference]: Without dead ends: 633 [2018-11-18 09:48:54,743 INFO L604 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 [2018-11-18 09:48:54,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-11-18 09:48:54,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 434. [2018-11-18 09:48:54,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-18 09:48:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 662 transitions. [2018-11-18 09:48:54,805 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 662 transitions. Word has length 54 [2018-11-18 09:48:54,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:54,806 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 662 transitions. [2018-11-18 09:48:54,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:48:54,806 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 662 transitions. [2018-11-18 09:48:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-18 09:48:54,811 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:54,811 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:54,811 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:54,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:54,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1614354860, now seen corresponding path program 1 times [2018-11-18 09:48:54,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:54,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:54,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:54,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:54,813 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:54,932 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:48:54,933 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:54,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:48:54,933 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:54,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:48:54,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:48:54,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:48:54,935 INFO L87 Difference]: Start difference. First operand 434 states and 662 transitions. Second operand 4 states. [2018-11-18 09:48:55,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:55,777 INFO L93 Difference]: Finished difference Result 1594 states and 2533 transitions. [2018-11-18 09:48:55,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:48:55,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2018-11-18 09:48:55,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:55,787 INFO L225 Difference]: With dead ends: 1594 [2018-11-18 09:48:55,787 INFO L226 Difference]: Without dead ends: 780 [2018-11-18 09:48:55,793 INFO L604 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 [2018-11-18 09:48:55,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2018-11-18 09:48:55,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2018-11-18 09:48:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2018-11-18 09:48:55,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1152 transitions. [2018-11-18 09:48:55,822 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1152 transitions. Word has length 138 [2018-11-18 09:48:55,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:55,823 INFO L480 AbstractCegarLoop]: Abstraction has 780 states and 1152 transitions. [2018-11-18 09:48:55,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:48:55,823 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1152 transitions. [2018-11-18 09:48:55,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-11-18 09:48:55,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:55,829 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:55,829 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:55,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:55,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1391925776, now seen corresponding path program 1 times [2018-11-18 09:48:55,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:55,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:55,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:55,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:55,831 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:55,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-18 09:48:55,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:48:55,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:48:55,975 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:48:55,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 09:48:55,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:48:55,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:48:55,976 INFO L87 Difference]: Start difference. First operand 780 states and 1152 transitions. Second operand 4 states. [2018-11-18 09:48:57,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:48:57,073 INFO L93 Difference]: Finished difference Result 3018 states and 4610 transitions. [2018-11-18 09:48:57,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:48:57,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 224 [2018-11-18 09:48:57,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:48:57,089 INFO L225 Difference]: With dead ends: 3018 [2018-11-18 09:48:57,090 INFO L226 Difference]: Without dead ends: 2244 [2018-11-18 09:48:57,098 INFO L604 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 [2018-11-18 09:48:57,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2018-11-18 09:48:57,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2244. [2018-11-18 09:48:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2018-11-18 09:48:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3149 transitions. [2018-11-18 09:48:57,167 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3149 transitions. Word has length 224 [2018-11-18 09:48:57,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:48:57,168 INFO L480 AbstractCegarLoop]: Abstraction has 2244 states and 3149 transitions. [2018-11-18 09:48:57,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 09:48:57,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3149 transitions. [2018-11-18 09:48:57,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-11-18 09:48:57,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:48:57,182 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:48:57,183 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:48:57,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:48:57,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1136291269, now seen corresponding path program 1 times [2018-11-18 09:48:57,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:48:57,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:57,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:48:57,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:48:57,184 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:48:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:48:57,529 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 94 proven. 108 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 09:48:57,529 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:48:57,529 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:48:57,530 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 320 with the following transitions: [2018-11-18 09:48:57,532 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:48:57,569 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:48:57,569 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:49:00,308 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:49:00,309 INFO L272 AbstractInterpreter]: Visited 157 different actions 157 times. Never merged. Never widened. Performed 1514 root evaluator evaluations with a maximum evaluation depth of 22. Performed 1514 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Never found a fixpoint. Largest state had 24 variables. [2018-11-18 09:49:00,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:49:00,330 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:49:02,389 INFO L227 lantSequenceWeakener]: Weakened 310 states. On average, predicates are now at 77.83% of their original sizes. [2018-11-18 09:49:02,389 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:49:02,434 INFO L415 sIntCurrentIteration]: We unified 318 AI predicates to 318 [2018-11-18 09:49:02,434 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:49:02,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:49:02,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-11-18 09:49:02,435 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:49:02,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 09:49:02,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:49:02,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:49:02,436 INFO L87 Difference]: Start difference. First operand 2244 states and 3149 transitions. Second operand 6 states. [2018-11-18 09:49:07,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:49:07,183 INFO L93 Difference]: Finished difference Result 4667 states and 6526 transitions. [2018-11-18 09:49:07,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:49:07,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 319 [2018-11-18 09:49:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:49:07,192 INFO L225 Difference]: With dead ends: 4667 [2018-11-18 09:49:07,192 INFO L226 Difference]: Without dead ends: 2429 [2018-11-18 09:49:07,199 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 319 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:49:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2018-11-18 09:49:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2427. [2018-11-18 09:49:07,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2427 states. [2018-11-18 09:49:07,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3340 transitions. [2018-11-18 09:49:07,243 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3340 transitions. Word has length 319 [2018-11-18 09:49:07,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:49:07,243 INFO L480 AbstractCegarLoop]: Abstraction has 2427 states and 3340 transitions. [2018-11-18 09:49:07,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 09:49:07,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3340 transitions. [2018-11-18 09:49:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-11-18 09:49:07,252 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:49:07,253 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:49:07,253 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:49:07,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:49:07,254 INFO L82 PathProgramCache]: Analyzing trace with hash 2012329804, now seen corresponding path program 1 times [2018-11-18 09:49:07,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:49:07,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:49:07,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:49:07,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:49:07,255 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:49:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:49:07,747 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 229 proven. 190 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-18 09:49:07,747 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:49:07,747 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:49:07,748 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 405 with the following transitions: [2018-11-18 09:49:07,748 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:49:07,752 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:49:07,752 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:49:11,391 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:49:11,391 INFO L272 AbstractInterpreter]: Visited 161 different actions 315 times. Merged at 4 different actions 4 times. Never widened. Performed 3148 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3148 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 09:49:11,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:49:11,397 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:49:13,320 INFO L227 lantSequenceWeakener]: Weakened 401 states. On average, predicates are now at 77.77% of their original sizes. [2018-11-18 09:49:13,320 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:49:13,396 INFO L415 sIntCurrentIteration]: We unified 403 AI predicates to 403 [2018-11-18 09:49:13,396 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:49:13,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:49:13,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-18 09:49:13,397 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:49:13,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:49:13,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:49:13,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:49:13,398 INFO L87 Difference]: Start difference. First operand 2427 states and 3340 transitions. Second operand 10 states. [2018-11-18 09:49:58,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:49:58,248 INFO L93 Difference]: Finished difference Result 5408 states and 7353 transitions. [2018-11-18 09:49:58,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 09:49:58,248 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 404 [2018-11-18 09:49:58,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:49:58,261 INFO L225 Difference]: With dead ends: 5408 [2018-11-18 09:49:58,261 INFO L226 Difference]: Without dead ends: 2800 [2018-11-18 09:49:58,271 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 412 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:49:58,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2018-11-18 09:49:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2798. [2018-11-18 09:49:58,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2798 states. [2018-11-18 09:49:58,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3744 transitions. [2018-11-18 09:49:58,337 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3744 transitions. Word has length 404 [2018-11-18 09:49:58,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:49:58,337 INFO L480 AbstractCegarLoop]: Abstraction has 2798 states and 3744 transitions. [2018-11-18 09:49:58,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:49:58,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3744 transitions. [2018-11-18 09:49:58,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2018-11-18 09:49:58,358 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:49:58,358 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:49:58,358 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:49:58,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:49:58,359 INFO L82 PathProgramCache]: Analyzing trace with hash -356180380, now seen corresponding path program 1 times [2018-11-18 09:49:58,359 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:49:58,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:49:58,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:49:58,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:49:58,361 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:49:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:49:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 386 proven. 250 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-18 09:49:59,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:49:59,065 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:49:59,065 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 505 with the following transitions: [2018-11-18 09:49:59,065 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:49:59,068 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:49:59,068 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:50:02,079 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:50:02,079 INFO L272 AbstractInterpreter]: Visited 162 different actions 318 times. Merged at 5 different actions 5 times. Never widened. Performed 3130 root evaluator evaluations with a maximum evaluation depth of 22. Performed 3130 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-18 09:50:02,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:50:02,085 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:50:03,828 INFO L227 lantSequenceWeakener]: Weakened 501 states. On average, predicates are now at 77.7% of their original sizes. [2018-11-18 09:50:03,828 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:50:03,874 INFO L415 sIntCurrentIteration]: We unified 503 AI predicates to 503 [2018-11-18 09:50:03,875 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:50:03,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:50:03,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-18 09:50:03,875 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:50:03,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:50:03,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:50:03,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 09:50:03,876 INFO L87 Difference]: Start difference. First operand 2798 states and 3744 transitions. Second operand 10 states. [2018-11-18 09:50:20,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:50:20,718 INFO L93 Difference]: Finished difference Result 5224 states and 7100 transitions. [2018-11-18 09:50:20,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 09:50:20,719 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 504 [2018-11-18 09:50:20,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:50:20,729 INFO L225 Difference]: With dead ends: 5224 [2018-11-18 09:50:20,729 INFO L226 Difference]: Without dead ends: 2615 [2018-11-18 09:50:20,738 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 511 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:50:20,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2018-11-18 09:50:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2612. [2018-11-18 09:50:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2612 states. [2018-11-18 09:50:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 3522 transitions. [2018-11-18 09:50:20,796 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 3522 transitions. Word has length 504 [2018-11-18 09:50:20,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:50:20,797 INFO L480 AbstractCegarLoop]: Abstraction has 2612 states and 3522 transitions. [2018-11-18 09:50:20,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:50:20,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 3522 transitions. [2018-11-18 09:50:20,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2018-11-18 09:50:20,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:50:20,817 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:50:20,817 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:50:20,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:50:20,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1011924707, now seen corresponding path program 1 times [2018-11-18 09:50:20,818 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:50:20,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:50:20,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:50:20,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:50:20,819 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:50:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:50:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 336 proven. 285 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-11-18 09:50:21,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:50:21,168 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:50:21,168 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 508 with the following transitions: [2018-11-18 09:50:21,168 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:50:21,170 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:50:21,170 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:50:25,077 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 09:50:25,078 INFO L272 AbstractInterpreter]: Visited 162 different actions 479 times. Merged at 7 different actions 15 times. Never widened. Performed 4874 root evaluator evaluations with a maximum evaluation depth of 21. Performed 4874 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-18 09:50:25,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:50:25,079 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 09:50:25,777 INFO L227 lantSequenceWeakener]: Weakened 504 states. On average, predicates are now at 80.33% of their original sizes. [2018-11-18 09:50:25,777 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 09:50:25,818 INFO L415 sIntCurrentIteration]: We unified 506 AI predicates to 506 [2018-11-18 09:50:25,819 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 09:50:25,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:50:25,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14 [2018-11-18 09:50:25,819 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:50:25,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:50:25,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:50:25,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:50:25,820 INFO L87 Difference]: Start difference. First operand 2612 states and 3522 transitions. Second operand 9 states. [2018-11-18 09:50:41,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:50:41,785 INFO L93 Difference]: Finished difference Result 5943 states and 8291 transitions. [2018-11-18 09:50:41,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 09:50:41,785 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 507 [2018-11-18 09:50:41,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:50:41,798 INFO L225 Difference]: With dead ends: 5943 [2018-11-18 09:50:41,798 INFO L226 Difference]: Without dead ends: 3705 [2018-11-18 09:50:41,808 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 513 GetRequests, 499 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-18 09:50:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2018-11-18 09:50:41,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3684. [2018-11-18 09:50:41,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3684 states. [2018-11-18 09:50:41,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 4834 transitions. [2018-11-18 09:50:41,885 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 4834 transitions. Word has length 507 [2018-11-18 09:50:41,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:50:41,886 INFO L480 AbstractCegarLoop]: Abstraction has 3684 states and 4834 transitions. [2018-11-18 09:50:41,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:50:41,886 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 4834 transitions. [2018-11-18 09:50:41,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2018-11-18 09:50:41,902 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:50:41,902 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:50:41,902 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:50:41,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:50:41,903 INFO L82 PathProgramCache]: Analyzing trace with hash 767629283, now seen corresponding path program 1 times [2018-11-18 09:50:41,903 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:50:41,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:50:41,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:50:41,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:50:41,904 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:50:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:50:42,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 554 proven. 458 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-11-18 09:50:42,794 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:50:42,794 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:50:42,794 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 614 with the following transitions: [2018-11-18 09:50:42,794 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:50:42,797 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:50:42,797 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:50:50,775 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:50:50,775 INFO L272 AbstractInterpreter]: Visited 164 different actions 652 times. Merged at 9 different actions 32 times. Never widened. Performed 6849 root evaluator evaluations with a maximum evaluation depth of 22. Performed 6849 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 8 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 09:50:50,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:50:50,777 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:50:50,777 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:50:50,778 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:50:50,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:50:50,786 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:50:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:50:50,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:50:51,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 892 proven. 2 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2018-11-18 09:50:51,357 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:50:51,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1192 backedges. 548 proven. 112 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2018-11-18 09:50:51,824 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:50:51,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 09:50:51,824 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:50:51,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 09:50:51,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 09:50:51,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:50:51,825 INFO L87 Difference]: Start difference. First operand 3684 states and 4834 transitions. Second operand 17 states. [2018-11-18 09:50:55,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:50:55,433 INFO L93 Difference]: Finished difference Result 8467 states and 11545 transitions. [2018-11-18 09:50:55,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 09:50:55,434 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 613 [2018-11-18 09:50:55,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:50:55,449 INFO L225 Difference]: With dead ends: 8467 [2018-11-18 09:50:55,449 INFO L226 Difference]: Without dead ends: 3994 [2018-11-18 09:50:55,465 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1284 GetRequests, 1237 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=521, Invalid=1735, Unknown=0, NotChecked=0, Total=2256 [2018-11-18 09:50:55,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2018-11-18 09:50:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3527. [2018-11-18 09:50:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3527 states. [2018-11-18 09:50:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 4081 transitions. [2018-11-18 09:50:55,527 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 4081 transitions. Word has length 613 [2018-11-18 09:50:55,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:50:55,528 INFO L480 AbstractCegarLoop]: Abstraction has 3527 states and 4081 transitions. [2018-11-18 09:50:55,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 09:50:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 4081 transitions. [2018-11-18 09:50:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 688 [2018-11-18 09:50:55,536 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:50:55,537 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:50:55,537 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:50:55,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:50:55,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1652295509, now seen corresponding path program 1 times [2018-11-18 09:50:55,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:50:55,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:50:55,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:50:55,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:50:55,539 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:50:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:50:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 479 proven. 513 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2018-11-18 09:50:56,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:50:56,365 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:50:56,366 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 688 with the following transitions: [2018-11-18 09:50:56,366 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:50:56,368 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:50:56,368 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:51:00,769 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:51:00,769 INFO L272 AbstractInterpreter]: Visited 192 different actions 761 times. Merged at 10 different actions 29 times. Never widened. Performed 8258 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8258 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 8 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-18 09:51:00,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:00,770 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:51:00,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:00,770 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:51:00,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:00,777 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:51:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:00,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:51:01,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 974 proven. 2 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2018-11-18 09:51:01,127 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:51:01,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 477 proven. 228 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2018-11-18 09:51:01,589 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:51:01,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 20 [2018-11-18 09:51:01,589 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:51:01,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 09:51:01,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 09:51:01,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-11-18 09:51:01,591 INFO L87 Difference]: Start difference. First operand 3527 states and 4081 transitions. Second operand 17 states. [2018-11-18 09:51:06,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:51:06,008 INFO L93 Difference]: Finished difference Result 10146 states and 12667 transitions. [2018-11-18 09:51:06,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2018-11-18 09:51:06,009 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 687 [2018-11-18 09:51:06,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:51:06,036 INFO L225 Difference]: With dead ends: 10146 [2018-11-18 09:51:06,036 INFO L226 Difference]: Without dead ends: 6993 [2018-11-18 09:51:06,054 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1406 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1203 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=883, Invalid=3407, Unknown=0, NotChecked=0, Total=4290 [2018-11-18 09:51:06,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6993 states. [2018-11-18 09:51:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6993 to 6862. [2018-11-18 09:51:06,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6862 states. [2018-11-18 09:51:06,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6862 states to 6862 states and 7965 transitions. [2018-11-18 09:51:06,158 INFO L78 Accepts]: Start accepts. Automaton has 6862 states and 7965 transitions. Word has length 687 [2018-11-18 09:51:06,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:51:06,159 INFO L480 AbstractCegarLoop]: Abstraction has 6862 states and 7965 transitions. [2018-11-18 09:51:06,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 09:51:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 6862 states and 7965 transitions. [2018-11-18 09:51:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2018-11-18 09:51:06,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:51:06,171 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:51:06,172 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:51:06,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:06,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1733960817, now seen corresponding path program 1 times [2018-11-18 09:51:06,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:51:06,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:06,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:06,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:06,174 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:51:06,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:06,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1843 backedges. 655 proven. 228 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2018-11-18 09:51:06,633 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:06,633 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:51:06,633 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 806 with the following transitions: [2018-11-18 09:51:06,633 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:51:06,635 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:51:06,635 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:51:11,028 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:51:11,029 INFO L272 AbstractInterpreter]: Visited 193 different actions 768 times. Merged at 10 different actions 32 times. Never widened. Performed 8381 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8381 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-18 09:51:11,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:11,030 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:51:11,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:11,030 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:51:11,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:11,037 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:51:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:11,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:51:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1843 backedges. 1340 proven. 2 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2018-11-18 09:51:11,418 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:51:11,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1843 backedges. 655 proven. 228 refuted. 0 times theorem prover too weak. 960 trivial. 0 not checked. [2018-11-18 09:51:11,759 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:51:11,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 09:51:11,759 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:51:11,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:51:11,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:51:11,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:51:11,761 INFO L87 Difference]: Start difference. First operand 6862 states and 7965 transitions. Second operand 7 states. [2018-11-18 09:51:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:51:12,883 INFO L93 Difference]: Finished difference Result 18858 states and 26437 transitions. [2018-11-18 09:51:12,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 09:51:12,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 805 [2018-11-18 09:51:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:51:12,937 INFO L225 Difference]: With dead ends: 18858 [2018-11-18 09:51:12,937 INFO L226 Difference]: Without dead ends: 12370 [2018-11-18 09:51:12,967 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1624 GetRequests, 1611 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:51:12,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12370 states. [2018-11-18 09:51:13,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12370 to 11539. [2018-11-18 09:51:13,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11539 states. [2018-11-18 09:51:13,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11539 states to 11539 states and 13889 transitions. [2018-11-18 09:51:13,163 INFO L78 Accepts]: Start accepts. Automaton has 11539 states and 13889 transitions. Word has length 805 [2018-11-18 09:51:13,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:51:13,164 INFO L480 AbstractCegarLoop]: Abstraction has 11539 states and 13889 transitions. [2018-11-18 09:51:13,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:51:13,164 INFO L276 IsEmpty]: Start isEmpty. Operand 11539 states and 13889 transitions. [2018-11-18 09:51:13,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2018-11-18 09:51:13,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:51:13,182 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 09:51:13,182 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:51:13,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:13,183 INFO L82 PathProgramCache]: Analyzing trace with hash -759808128, now seen corresponding path program 1 times [2018-11-18 09:51:13,183 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:51:13,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:13,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:13,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:13,184 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:51:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:14,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 654 proven. 893 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2018-11-18 09:51:14,289 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:14,289 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:51:14,289 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 851 with the following transitions: [2018-11-18 09:51:14,290 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:51:14,291 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:51:14,292 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:51:18,769 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:51:18,770 INFO L272 AbstractInterpreter]: Visited 193 different actions 775 times. Merged at 11 different actions 39 times. Widened at 1 different actions 1 times. Performed 8443 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8443 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 10 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 09:51:18,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:18,773 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:51:18,774 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:18,774 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 09:51:18,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:18,787 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:51:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:18,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:51:19,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 1419 proven. 2 refuted. 0 times theorem prover too weak. 501 trivial. 0 not checked. [2018-11-18 09:51:19,357 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:51:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 700 proven. 228 refuted. 0 times theorem prover too weak. 994 trivial. 0 not checked. [2018-11-18 09:51:19,871 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:51:19,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 19 [2018-11-18 09:51:19,872 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:51:19,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 09:51:19,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 09:51:19,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:51:19,873 INFO L87 Difference]: Start difference. First operand 11539 states and 13889 transitions. Second operand 17 states. [2018-11-18 09:51:23,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:51:23,349 INFO L93 Difference]: Finished difference Result 25874 states and 32901 transitions. [2018-11-18 09:51:23,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-11-18 09:51:23,350 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 850 [2018-11-18 09:51:23,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:51:23,387 INFO L225 Difference]: With dead ends: 25874 [2018-11-18 09:51:23,387 INFO L226 Difference]: Without dead ends: 14524 [2018-11-18 09:51:23,423 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1772 GetRequests, 1722 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=583, Invalid=2069, Unknown=0, NotChecked=0, Total=2652 [2018-11-18 09:51:23,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14524 states. [2018-11-18 09:51:23,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14524 to 14455. [2018-11-18 09:51:23,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14455 states. [2018-11-18 09:51:23,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14455 states to 14455 states and 17743 transitions. [2018-11-18 09:51:23,706 INFO L78 Accepts]: Start accepts. Automaton has 14455 states and 17743 transitions. Word has length 850 [2018-11-18 09:51:23,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:51:23,706 INFO L480 AbstractCegarLoop]: Abstraction has 14455 states and 17743 transitions. [2018-11-18 09:51:23,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 09:51:23,706 INFO L276 IsEmpty]: Start isEmpty. Operand 14455 states and 17743 transitions. [2018-11-18 09:51:23,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 966 [2018-11-18 09:51:23,724 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:51:23,725 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:51:23,725 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:51:23,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:23,725 INFO L82 PathProgramCache]: Analyzing trace with hash -201399489, now seen corresponding path program 1 times [2018-11-18 09:51:23,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:51:23,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:23,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:23,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:23,726 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:51:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:24,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2621 backedges. 875 proven. 228 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2018-11-18 09:51:24,356 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:24,356 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:51:24,356 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 966 with the following transitions: [2018-11-18 09:51:24,356 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [854], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:51:24,359 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:51:24,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:51:28,850 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:51:28,850 INFO L272 AbstractInterpreter]: Visited 194 different actions 772 times. Merged at 11 different actions 32 times. Never widened. Performed 8443 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8443 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 12 fixpoints after 5 different actions. Largest state had 24 variables. [2018-11-18 09:51:28,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:28,853 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:51:28,853 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:28,853 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:51:28,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:28,860 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:51:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:28,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:51:29,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2621 backedges. 1782 proven. 2 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2018-11-18 09:51:29,328 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:51:29,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2621 backedges. 875 proven. 228 refuted. 0 times theorem prover too weak. 1518 trivial. 0 not checked. [2018-11-18 09:51:29,780 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:51:29,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-11-18 09:51:29,781 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:51:29,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 09:51:29,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:51:29,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-18 09:51:29,782 INFO L87 Difference]: Start difference. First operand 14455 states and 17743 transitions. Second operand 7 states. [2018-11-18 09:51:30,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:51:30,781 INFO L93 Difference]: Finished difference Result 30082 states and 37229 transitions. [2018-11-18 09:51:30,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 09:51:30,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 965 [2018-11-18 09:51:30,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:51:30,813 INFO L225 Difference]: With dead ends: 30082 [2018-11-18 09:51:30,814 INFO L226 Difference]: Without dead ends: 16001 [2018-11-18 09:51:30,843 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1944 GetRequests, 1931 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-11-18 09:51:30,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16001 states. [2018-11-18 09:51:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16001 to 15508. [2018-11-18 09:51:31,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15508 states. [2018-11-18 09:51:31,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15508 states to 15508 states and 18442 transitions. [2018-11-18 09:51:31,093 INFO L78 Accepts]: Start accepts. Automaton has 15508 states and 18442 transitions. Word has length 965 [2018-11-18 09:51:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:51:31,094 INFO L480 AbstractCegarLoop]: Abstraction has 15508 states and 18442 transitions. [2018-11-18 09:51:31,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 09:51:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 15508 states and 18442 transitions. [2018-11-18 09:51:31,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1061 [2018-11-18 09:51:31,121 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:51:31,122 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:51:31,122 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:51:31,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:31,123 INFO L82 PathProgramCache]: Analyzing trace with hash 328200828, now seen corresponding path program 1 times [2018-11-18 09:51:31,123 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:51:31,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:31,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:31,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:31,124 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:51:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:33,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3225 backedges. 778 proven. 1425 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2018-11-18 09:51:33,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:33,043 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:51:33,044 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1061 with the following transitions: [2018-11-18 09:51:33,044 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [686], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:51:33,046 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:51:33,046 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:51:37,580 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:51:37,581 INFO L272 AbstractInterpreter]: Visited 195 different actions 780 times. Merged at 11 different actions 36 times. Never widened. Performed 8545 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8545 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-18 09:51:37,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:37,585 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:51:37,585 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:37,585 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:51:37,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:37,593 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:51:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:37,726 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:51:38,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3225 backedges. 2163 proven. 2 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2018-11-18 09:51:38,076 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:51:38,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3225 backedges. 779 proven. 477 refuted. 0 times theorem prover too weak. 1969 trivial. 0 not checked. [2018-11-18 09:51:38,791 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:51:38,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 20 [2018-11-18 09:51:38,791 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:51:38,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 09:51:38,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 09:51:38,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-18 09:51:38,792 INFO L87 Difference]: Start difference. First operand 15508 states and 18442 transitions. Second operand 18 states. [2018-11-18 09:51:43,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:51:43,703 INFO L93 Difference]: Finished difference Result 30766 states and 36866 transitions. [2018-11-18 09:51:43,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2018-11-18 09:51:43,704 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1060 [2018-11-18 09:51:43,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:51:43,734 INFO L225 Difference]: With dead ends: 30766 [2018-11-18 09:51:43,734 INFO L226 Difference]: Without dead ends: 15632 [2018-11-18 09:51:43,764 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2215 GetRequests, 2149 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=911, Invalid=3645, Unknown=0, NotChecked=0, Total=4556 [2018-11-18 09:51:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15632 states. [2018-11-18 09:51:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15632 to 15485. [2018-11-18 09:51:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15485 states. [2018-11-18 09:51:43,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15485 states to 15485 states and 17772 transitions. [2018-11-18 09:51:43,971 INFO L78 Accepts]: Start accepts. Automaton has 15485 states and 17772 transitions. Word has length 1060 [2018-11-18 09:51:43,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:51:43,971 INFO L480 AbstractCegarLoop]: Abstraction has 15485 states and 17772 transitions. [2018-11-18 09:51:43,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 09:51:43,972 INFO L276 IsEmpty]: Start isEmpty. Operand 15485 states and 17772 transitions. [2018-11-18 09:51:43,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1106 [2018-11-18 09:51:43,992 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:51:43,992 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-18 09:51:43,993 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:51:43,993 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:43,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1128197227, now seen corresponding path program 1 times [2018-11-18 09:51:43,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:51:43,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:43,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:43,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:43,994 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:51:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:44,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3349 backedges. 1455 proven. 230 refuted. 0 times theorem prover too weak. 1664 trivial. 0 not checked. [2018-11-18 09:51:44,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:44,756 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:51:44,757 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1106 with the following transitions: [2018-11-18 09:51:44,757 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:51:44,759 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:51:44,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:51:49,372 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:51:49,372 INFO L272 AbstractInterpreter]: Visited 195 different actions 780 times. Merged at 11 different actions 36 times. Never widened. Performed 8531 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8531 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-18 09:51:49,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:49,374 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:51:49,374 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:49,374 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:51:49,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:49,381 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:51:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:49,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:51:50,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3349 backedges. 2211 proven. 6 refuted. 0 times theorem prover too weak. 1132 trivial. 0 not checked. [2018-11-18 09:51:50,003 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:51:50,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3349 backedges. 1455 proven. 303 refuted. 0 times theorem prover too weak. 1591 trivial. 0 not checked. [2018-11-18 09:51:50,640 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:51:50,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2018-11-18 09:51:50,640 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:51:50,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 09:51:50,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 09:51:50,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-11-18 09:51:50,642 INFO L87 Difference]: Start difference. First operand 15485 states and 17772 transitions. Second operand 9 states. [2018-11-18 09:51:52,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:51:52,490 INFO L93 Difference]: Finished difference Result 35669 states and 41210 transitions. [2018-11-18 09:51:52,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 09:51:52,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1105 [2018-11-18 09:51:52,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:51:52,523 INFO L225 Difference]: With dead ends: 35669 [2018-11-18 09:51:52,523 INFO L226 Difference]: Without dead ends: 20558 [2018-11-18 09:51:52,545 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2227 GetRequests, 2208 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2018-11-18 09:51:52,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20558 states. [2018-11-18 09:51:52,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20558 to 19674. [2018-11-18 09:51:52,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19674 states. [2018-11-18 09:51:52,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19674 states to 19674 states and 22682 transitions. [2018-11-18 09:51:52,816 INFO L78 Accepts]: Start accepts. Automaton has 19674 states and 22682 transitions. Word has length 1105 [2018-11-18 09:51:52,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:51:52,816 INFO L480 AbstractCegarLoop]: Abstraction has 19674 states and 22682 transitions. [2018-11-18 09:51:52,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 09:51:52,817 INFO L276 IsEmpty]: Start isEmpty. Operand 19674 states and 22682 transitions. [2018-11-18 09:51:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1139 [2018-11-18 09:51:52,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:51:52,835 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 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, 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, 4, 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] [2018-11-18 09:51:52,835 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:51:52,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:51:52,836 INFO L82 PathProgramCache]: Analyzing trace with hash 610273252, now seen corresponding path program 1 times [2018-11-18 09:51:52,836 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:51:52,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:52,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:51:52,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:51:52,837 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:51:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:51:55,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3542 backedges. 1059 proven. 1766 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2018-11-18 09:51:55,182 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:51:55,182 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:51:55,183 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1139 with the following transitions: [2018-11-18 09:51:55,183 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:51:55,185 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:51:55,185 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:52:03,322 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:52:03,322 INFO L272 AbstractInterpreter]: Visited 195 different actions 783 times. Merged at 11 different actions 39 times. Widened at 1 different actions 1 times. Performed 8617 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8617 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 14 fixpoints after 7 different actions. Largest state had 24 variables. [2018-11-18 09:52:03,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:03,325 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:52:03,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:03,326 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:52:03,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:03,333 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:52:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:03,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:52:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3542 backedges. 1845 proven. 2 refuted. 0 times theorem prover too weak. 1695 trivial. 0 not checked. [2018-11-18 09:52:03,895 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:52:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3542 backedges. 1056 proven. 112 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2018-11-18 09:52:04,539 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:52:04,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5] total 19 [2018-11-18 09:52:04,539 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:52:04,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 09:52:04,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 09:52:04,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:52:04,540 INFO L87 Difference]: Start difference. First operand 19674 states and 22682 transitions. Second operand 18 states. [2018-11-18 09:52:07,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:52:07,680 INFO L93 Difference]: Finished difference Result 36964 states and 42939 transitions. [2018-11-18 09:52:07,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-11-18 09:52:07,680 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1138 [2018-11-18 09:52:07,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:52:07,707 INFO L225 Difference]: With dead ends: 36964 [2018-11-18 09:52:07,707 INFO L226 Difference]: Without dead ends: 17664 [2018-11-18 09:52:07,734 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2371 GetRequests, 2310 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=642, Invalid=2780, Unknown=0, NotChecked=0, Total=3422 [2018-11-18 09:52:07,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17664 states. [2018-11-18 09:52:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17664 to 16324. [2018-11-18 09:52:07,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16324 states. [2018-11-18 09:52:07,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16324 states to 16324 states and 17860 transitions. [2018-11-18 09:52:07,910 INFO L78 Accepts]: Start accepts. Automaton has 16324 states and 17860 transitions. Word has length 1138 [2018-11-18 09:52:07,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:52:07,910 INFO L480 AbstractCegarLoop]: Abstraction has 16324 states and 17860 transitions. [2018-11-18 09:52:07,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 09:52:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 16324 states and 17860 transitions. [2018-11-18 09:52:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1258 [2018-11-18 09:52:07,924 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:52:07,925 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-18 09:52:07,925 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:52:07,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:07,925 INFO L82 PathProgramCache]: Analyzing trace with hash 671938855, now seen corresponding path program 1 times [2018-11-18 09:52:07,925 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:52:07,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:52:07,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:07,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:52:07,926 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:52:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:09,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4476 backedges. 1215 proven. 860 refuted. 0 times theorem prover too weak. 2401 trivial. 0 not checked. [2018-11-18 09:52:09,464 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:09,464 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:52:09,465 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1258 with the following transitions: [2018-11-18 09:52:09,465 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:52:09,467 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:52:09,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:52:17,642 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:52:17,642 INFO L272 AbstractInterpreter]: Visited 196 different actions 785 times. Merged at 10 different actions 37 times. Widened at 1 different actions 1 times. Performed 8736 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8736 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 15 fixpoints after 8 different actions. Largest state had 24 variables. [2018-11-18 09:52:17,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:17,644 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:52:17,644 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:17,644 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:52:17,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:17,651 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:52:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:17,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:52:18,363 INFO L134 CoverageAnalysis]: Checked inductivity of 4476 backedges. 2127 proven. 2 refuted. 0 times theorem prover too weak. 2347 trivial. 0 not checked. [2018-11-18 09:52:18,363 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:52:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4476 backedges. 1224 proven. 112 refuted. 0 times theorem prover too weak. 3140 trivial. 0 not checked. [2018-11-18 09:52:19,425 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:52:19,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 09:52:19,425 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:52:19,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 09:52:19,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 09:52:19,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:52:19,426 INFO L87 Difference]: Start difference. First operand 16324 states and 17860 transitions. Second operand 17 states. [2018-11-18 09:52:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:52:23,629 INFO L93 Difference]: Finished difference Result 32865 states and 36030 transitions. [2018-11-18 09:52:23,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-11-18 09:52:23,630 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1257 [2018-11-18 09:52:23,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:52:23,652 INFO L225 Difference]: With dead ends: 32865 [2018-11-18 09:52:23,652 INFO L226 Difference]: Without dead ends: 16915 [2018-11-18 09:52:23,670 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2585 GetRequests, 2534 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=518, Invalid=2134, Unknown=0, NotChecked=0, Total=2652 [2018-11-18 09:52:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16915 states. [2018-11-18 09:52:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16915 to 16107. [2018-11-18 09:52:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16107 states. [2018-11-18 09:52:23,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16107 states to 16107 states and 17567 transitions. [2018-11-18 09:52:23,827 INFO L78 Accepts]: Start accepts. Automaton has 16107 states and 17567 transitions. Word has length 1257 [2018-11-18 09:52:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:52:23,827 INFO L480 AbstractCegarLoop]: Abstraction has 16107 states and 17567 transitions. [2018-11-18 09:52:23,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 09:52:23,828 INFO L276 IsEmpty]: Start isEmpty. Operand 16107 states and 17567 transitions. [2018-11-18 09:52:23,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1581 [2018-11-18 09:52:23,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:52:23,850 INFO L375 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, 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, 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, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:52:23,850 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:52:23,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:23,850 INFO L82 PathProgramCache]: Analyzing trace with hash -528147980, now seen corresponding path program 1 times [2018-11-18 09:52:23,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:52:23,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:52:23,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:23,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:52:23,851 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:52:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7001 backedges. 1820 proven. 2 refuted. 0 times theorem prover too weak. 5179 trivial. 0 not checked. [2018-11-18 09:52:25,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:25,126 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:52:25,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1581 with the following transitions: [2018-11-18 09:52:25,127 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [662], [663], [667], [671], [675], [679], [683], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [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], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:52:25,130 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:52:25,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:52:29,758 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:52:29,758 INFO L272 AbstractInterpreter]: Visited 201 different actions 813 times. Merged at 12 different actions 45 times. Widened at 1 different actions 2 times. Performed 8983 root evaluator evaluations with a maximum evaluation depth of 21. Performed 8983 inverse root evaluator evaluations with a maximum inverse evaluation depth of 21. Found 17 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-18 09:52:29,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:29,765 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:52:29,765 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:29,766 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:52:29,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:29,773 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:52:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:29,957 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:52:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7001 backedges. 1820 proven. 2 refuted. 0 times theorem prover too weak. 5179 trivial. 0 not checked. [2018-11-18 09:52:30,683 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:52:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 7001 backedges. 1820 proven. 2 refuted. 0 times theorem prover too weak. 5179 trivial. 0 not checked. [2018-11-18 09:52:31,541 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:52:31,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2018-11-18 09:52:31,541 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:52:31,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 09:52:31,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 09:52:31,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-18 09:52:31,543 INFO L87 Difference]: Start difference. First operand 16107 states and 17567 transitions. Second operand 10 states. [2018-11-18 09:52:32,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:52:32,660 INFO L93 Difference]: Finished difference Result 34010 states and 37444 transitions. [2018-11-18 09:52:32,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 09:52:32,660 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1580 [2018-11-18 09:52:32,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:52:32,670 INFO L225 Difference]: With dead ends: 34010 [2018-11-18 09:52:32,670 INFO L226 Difference]: Without dead ends: 6289 [2018-11-18 09:52:32,691 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3184 GetRequests, 3164 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2018-11-18 09:52:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6289 states. [2018-11-18 09:52:32,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6289 to 5780. [2018-11-18 09:52:32,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5780 states. [2018-11-18 09:52:32,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5780 states to 5780 states and 6002 transitions. [2018-11-18 09:52:32,756 INFO L78 Accepts]: Start accepts. Automaton has 5780 states and 6002 transitions. Word has length 1580 [2018-11-18 09:52:32,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:52:32,757 INFO L480 AbstractCegarLoop]: Abstraction has 5780 states and 6002 transitions. [2018-11-18 09:52:32,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 09:52:32,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5780 states and 6002 transitions. [2018-11-18 09:52:32,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1582 [2018-11-18 09:52:32,770 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:52:32,771 INFO L375 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, 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, 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, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:52:32,771 INFO L423 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:52:32,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:32,772 INFO L82 PathProgramCache]: Analyzing trace with hash -687350469, now seen corresponding path program 1 times [2018-11-18 09:52:32,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:52:32,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:52:32,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:32,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:52:32,773 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:52:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:34,756 INFO L134 CoverageAnalysis]: Checked inductivity of 7008 backedges. 1551 proven. 1084 refuted. 0 times theorem prover too weak. 4373 trivial. 0 not checked. [2018-11-18 09:52:34,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:34,756 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:52:34,757 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1582 with the following transitions: [2018-11-18 09:52:34,757 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [866], [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], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:52:34,759 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:52:34,759 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:52:42,924 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:52:42,924 INFO L272 AbstractInterpreter]: Visited 201 different actions 802 times. Merged at 11 different actions 34 times. Never widened. Performed 8906 root evaluator evaluations with a maximum evaluation depth of 22. Performed 8906 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 17 fixpoints after 9 different actions. Largest state had 24 variables. [2018-11-18 09:52:42,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:42,926 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:52:42,926 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:42,926 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:52:42,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:42,935 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:52:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:43,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:52:43,949 INFO L134 CoverageAnalysis]: Checked inductivity of 7008 backedges. 2746 proven. 2 refuted. 0 times theorem prover too weak. 4260 trivial. 0 not checked. [2018-11-18 09:52:43,949 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:52:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 7008 backedges. 1560 proven. 112 refuted. 0 times theorem prover too weak. 5336 trivial. 0 not checked. [2018-11-18 09:52:45,326 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:52:45,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 19 [2018-11-18 09:52:45,326 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:52:45,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 09:52:45,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 09:52:45,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-11-18 09:52:45,328 INFO L87 Difference]: Start difference. First operand 5780 states and 6002 transitions. Second operand 17 states. [2018-11-18 09:52:48,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:52:48,504 INFO L93 Difference]: Finished difference Result 12092 states and 12564 transitions. [2018-11-18 09:52:48,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-11-18 09:52:48,504 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 1581 [2018-11-18 09:52:48,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:52:48,511 INFO L225 Difference]: With dead ends: 12092 [2018-11-18 09:52:48,511 INFO L226 Difference]: Without dead ends: 5964 [2018-11-18 09:52:48,517 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3229 GetRequests, 3180 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=478, Invalid=1972, Unknown=0, NotChecked=0, Total=2450 [2018-11-18 09:52:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5964 states. [2018-11-18 09:52:48,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5964 to 5611. [2018-11-18 09:52:48,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5611 states. [2018-11-18 09:52:48,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5611 states to 5611 states and 5805 transitions. [2018-11-18 09:52:48,572 INFO L78 Accepts]: Start accepts. Automaton has 5611 states and 5805 transitions. Word has length 1581 [2018-11-18 09:52:48,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:52:48,573 INFO L480 AbstractCegarLoop]: Abstraction has 5611 states and 5805 transitions. [2018-11-18 09:52:48,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 09:52:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5611 states and 5805 transitions. [2018-11-18 09:52:48,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1838 [2018-11-18 09:52:48,591 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:52:48,591 INFO L375 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:52:48,591 INFO L423 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:52:48,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:48,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1505040037, now seen corresponding path program 1 times [2018-11-18 09:52:48,592 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:52:48,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:52:48,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:48,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:52:48,593 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:52:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 10458 backedges. 2053 proven. 2489 refuted. 0 times theorem prover too weak. 5916 trivial. 0 not checked. [2018-11-18 09:52:51,451 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:51,451 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:52:51,452 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1838 with the following transitions: [2018-11-18 09:52:51,452 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [634], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:52:51,454 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:52:51,454 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:52:59,612 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:52:59,612 INFO L272 AbstractInterpreter]: Visited 204 different actions 819 times. Merged at 12 different actions 39 times. Widened at 1 different actions 1 times. Performed 9135 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9135 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 21 fixpoints after 12 different actions. Largest state had 24 variables. [2018-11-18 09:52:59,617 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:52:59,617 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:52:59,617 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:52:59,617 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:52:59,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:52:59,626 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:52:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:52:59,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:53:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 10458 backedges. 4457 proven. 6 refuted. 0 times theorem prover too weak. 5995 trivial. 0 not checked. [2018-11-18 09:53:00,813 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:53:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 10458 backedges. 3021 proven. 214 refuted. 0 times theorem prover too weak. 7223 trivial. 0 not checked. [2018-11-18 09:53:02,579 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:53:02,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 18 [2018-11-18 09:53:02,579 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:53:02,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-18 09:53:02,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-18 09:53:02,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2018-11-18 09:53:02,581 INFO L87 Difference]: Start difference. First operand 5611 states and 5805 transitions. Second operand 16 states. [2018-11-18 09:53:05,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:53:05,665 INFO L93 Difference]: Finished difference Result 11412 states and 11979 transitions. [2018-11-18 09:53:05,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 09:53:05,666 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 1837 [2018-11-18 09:53:05,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:53:05,677 INFO L225 Difference]: With dead ends: 11412 [2018-11-18 09:53:05,677 INFO L226 Difference]: Without dead ends: 5447 [2018-11-18 09:53:05,685 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3754 GetRequests, 3708 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=478, Invalid=1778, Unknown=0, NotChecked=0, Total=2256 [2018-11-18 09:53:05,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5447 states. [2018-11-18 09:53:05,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5447 to 4971. [2018-11-18 09:53:05,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4971 states. [2018-11-18 09:53:05,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4971 states to 4971 states and 5132 transitions. [2018-11-18 09:53:05,756 INFO L78 Accepts]: Start accepts. Automaton has 4971 states and 5132 transitions. Word has length 1837 [2018-11-18 09:53:05,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:53:05,758 INFO L480 AbstractCegarLoop]: Abstraction has 4971 states and 5132 transitions. [2018-11-18 09:53:05,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-18 09:53:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4971 states and 5132 transitions. [2018-11-18 09:53:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1861 [2018-11-18 09:53:05,787 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:53:05,788 INFO L375 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:53:05,788 INFO L423 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:53:05,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:53:05,788 INFO L82 PathProgramCache]: Analyzing trace with hash -32618940, now seen corresponding path program 1 times [2018-11-18 09:53:05,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:53:05,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:53:05,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:53:05,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:53:05,789 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:53:05,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:53:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 10628 backedges. 2047 proven. 6779 refuted. 0 times theorem prover too weak. 1802 trivial. 0 not checked. [2018-11-18 09:53:09,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:53:09,533 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 09:53:09,533 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1861 with the following transitions: [2018-11-18 09:53:09,533 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [522], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [670], [671], [675], [679], [683], [686], [687], [690], [691], [695], [699], [703], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [778], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [822], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [926], [927], [931], [934], [935], [939], [943], [946], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-18 09:53:09,536 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 09:53:09,536 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 09:53:17,681 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 09:53:17,681 INFO L272 AbstractInterpreter]: Visited 204 different actions 821 times. Merged at 12 different actions 41 times. Never widened. Performed 9098 root evaluator evaluations with a maximum evaluation depth of 22. Performed 9098 inverse root evaluator evaluations with a maximum inverse evaluation depth of 22. Found 21 fixpoints after 11 different actions. Largest state had 24 variables. [2018-11-18 09:53:17,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:53:17,683 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 09:53:17,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:53:17,683 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/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 [2018-11-18 09:53:17,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:53:17,691 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 09:53:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:53:17,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:53:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 10628 backedges. 4730 proven. 6 refuted. 0 times theorem prover too weak. 5892 trivial. 0 not checked. [2018-11-18 09:53:19,070 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 09:53:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 10628 backedges. 3158 proven. 350 refuted. 0 times theorem prover too weak. 7120 trivial. 0 not checked. [2018-11-18 09:53:21,155 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-18 09:53:21,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 8, 8] total 38 [2018-11-18 09:53:21,156 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-18 09:53:21,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-11-18 09:53:21,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-11-18 09:53:21,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1260, Unknown=0, NotChecked=0, Total=1406 [2018-11-18 09:53:21,158 INFO L87 Difference]: Start difference. First operand 4971 states and 5132 transitions. Second operand 33 states. [2018-11-18 09:53:28,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:53:28,915 INFO L93 Difference]: Finished difference Result 10747 states and 11331 transitions. [2018-11-18 09:53:28,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2018-11-18 09:53:28,915 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 1860 [2018-11-18 09:53:28,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:53:28,922 INFO L225 Difference]: With dead ends: 10747 [2018-11-18 09:53:28,922 INFO L226 Difference]: Without dead ends: 4830 [2018-11-18 09:53:28,927 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3865 GetRequests, 3751 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3837 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2239, Invalid=10871, Unknown=0, NotChecked=0, Total=13110 [2018-11-18 09:53:28,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4830 states. [2018-11-18 09:53:28,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4830 to 4111. [2018-11-18 09:53:28,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4111 states. [2018-11-18 09:53:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4111 states to 4111 states and 4200 transitions. [2018-11-18 09:53:28,978 INFO L78 Accepts]: Start accepts. Automaton has 4111 states and 4200 transitions. Word has length 1860 [2018-11-18 09:53:28,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:53:28,979 INFO L480 AbstractCegarLoop]: Abstraction has 4111 states and 4200 transitions. [2018-11-18 09:53:28,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-11-18 09:53:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4111 states and 4200 transitions. [2018-11-18 09:53:28,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1954 [2018-11-18 09:53:28,997 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 09:53:28,997 INFO L375 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:53:28,998 INFO L423 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 09:53:28,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:53:28,998 INFO L82 PathProgramCache]: Analyzing trace with hash 230179679, now seen corresponding path program 1 times [2018-11-18 09:53:28,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 09:53:28,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:53:28,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:53:28,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:53:28,999 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 09:53:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:53:30,363 INFO L134 CoverageAnalysis]: Checked inductivity of 11882 backedges. 747 proven. 0 refuted. 0 times theorem prover too weak. 11135 trivial. 0 not checked. [2018-11-18 09:53:30,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:53:30,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:53:30,364 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 09:53:30,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 09:53:30,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:53:30,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:53:30,364 INFO L87 Difference]: Start difference. First operand 4111 states and 4200 transitions. Second operand 3 states. [2018-11-18 09:53:30,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:53:30,624 INFO L93 Difference]: Finished difference Result 4111 states and 4200 transitions. [2018-11-18 09:53:30,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:53:30,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1953 [2018-11-18 09:53:30,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 09:53:30,626 INFO L225 Difference]: With dead ends: 4111 [2018-11-18 09:53:30,626 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 09:53:30,628 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:53:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 09:53:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 09:53:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 09:53:30,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 09:53:30,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1953 [2018-11-18 09:53:30,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 09:53:30,629 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:53:30,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 09:53:30,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:53:30,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 09:53:30,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 09:53:30,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:30,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:30,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:30,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:30,848 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:31,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:32,270 WARN L180 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 735 DAG size of output: 642 [2018-11-18 09:53:32,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:32,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:32,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:32,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:32,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:32,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:33,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 09:53:33,393 WARN L180 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 759 DAG size of output: 660 [2018-11-18 09:53:34,881 WARN L180 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 398 DAG size of output: 117 [2018-11-18 09:53:37,809 WARN L180 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 642 DAG size of output: 104 [2018-11-18 09:53:40,823 WARN L180 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 651 DAG size of output: 100 [2018-11-18 09:53:40,825 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a12~0 |old(~a12~0)|) (<= |old(~a12~0)| ~a12~0) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= |old(~a15~0)| ~a15~0)) [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,826 INFO L425 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-11-18 09:53:40,827 INFO L425 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,828 INFO L425 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,829 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-11-18 09:53:40,830 INFO L425 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-11-18 09:53:40,831 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse12 (not (= 10 |old(~a21~0)|))) (.cse20 (= ~a12~0 |old(~a12~0)|)) (.cse8 (+ |old(~a12~0)| 43)) (.cse4 (= ~a24~0 |old(~a24~0)|)) (.cse0 (not (= 6 |old(~a21~0)|))) (.cse1 (not (= 1 |old(~a24~0)|))) (.cse5 (= ~a21~0 |old(~a21~0)|)) (.cse21 (= ~a21~0 9)) (.cse17 (= 5 |old(~a15~0)|)) (.cse3 (<= ~a12~0 |old(~a12~0)|)) (.cse34 (<= |old(~a12~0)| ~a12~0)) (.cse22 (= |old(~a15~0)| ~a15~0)) (.cse33 (= 1 ~a24~0))) (let ((.cse10 (and .cse3 .cse34 .cse22 .cse33 (= 10 ~a21~0))) (.cse2 (not .cse17)) (.cse15 (not (= 7 |old(~a21~0)|))) (.cse7 (+ ~a12~0 43)) (.cse6 (not (= 6 |old(~a15~0)|))) (.cse31 (and .cse3 .cse34 .cse21 .cse22 .cse33)) (.cse26 (not (= 8 |old(~a15~0)|))) (.cse27 (= |calculate_output_#in~input| 0)) (.cse25 (and .cse3 .cse34 .cse5 (= 8 ~a15~0) (= ~a24~0 1))) (.cse13 (< 11 |old(~a12~0)|)) (.cse9 (< |old(~a12~0)| 19)) (.cse28 (and .cse3 .cse34 .cse5 .cse22 .cse33)) (.cse30 (or .cse0 .cse17 .cse1)) (.cse32 (< 73282 |old(~a12~0)|)) (.cse18 (not (= 8 |old(~a21~0)|))) (.cse19 (and .cse3 .cse34 .cse4 .cse5 .cse22)) (.cse24 (< 0 .cse8)) (.cse16 (< 7 |old(~a15~0)|)) (.cse14 (and .cse20 .cse4 .cse5 .cse22)) (.cse11 (or .cse12 .cse17 .cse1)) (.cse23 (not (= 9 |old(~a21~0)|))) (.cse29 (not (= 7 |old(~a15~0)|)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5 (= ~a15~0 |old(~a15~0)|))) (or .cse6 (= 6 ~a15~0)) (or .cse0 (< 0 .cse7) (< 80 |old(~a12~0)|) (<= .cse8 0) .cse1 .cse2) (or .cse9 .cse10 .cse11) (or .cse12 .cse1 .cse13 .cse10) (or .cse14 .cse2 (or .cse12 .cse1)) (or .cse15 .cse1 .cse14 .cse16) (or .cse17 .cse1 .cse18 .cse19) (or (and (and .cse20 .cse4 .cse21) .cse22) (or .cse23 (or .cse1 .cse24)) .cse16) (or .cse25 (or .cse15 .cse1 .cse26 .cse27)) (or .cse15 .cse9 .cse1 .cse28) (or .cse29 .cse30 .cse14) (or .cse23 .cse31 .cse9 .cse17 .cse1) (or (<= .cse7 0) .cse6 .cse24) (or .cse23 (< |old(~a12~0)| 12) .cse31 .cse1 .cse32 .cse16) (or .cse26 .cse27 .cse23 .cse25 .cse1 .cse13) (or .cse9 .cse28 .cse30) (or .cse1 .cse14 .cse32 .cse18) (or .cse19 (or .cse0 .cse24) .cse16) (or .cse14 .cse29 .cse11) (or (and .cse20 .cse21 (= 7 ~a15~0) .cse33) .cse23 .cse1 .cse29)))) [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-11-18 09:53:40,832 INFO L425 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-11-18 09:53:40,833 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-11-18 09:53:40,834 INFO L425 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,835 INFO L425 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-11-18 09:53:40,836 INFO L425 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-18 09:53:40,837 INFO L425 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-11-18 09:53:40,838 INFO L425 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L421 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)) [2018-11-18 09:53:40,839 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 09:53:40,839 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (and (= 7 ~a21~0) (<= |old(~a12~0)| ~a12~0) (<= (+ ~a12~0 49) 0) (= |old(~a15~0)| ~a15~0) (= ~a24~0 1)) (not (= 1 |old(~a24~0)|)) (not (= 0 (+ |old(~a12~0)| 49)))) [2018-11-18 09:53:40,839 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-11-18 09:53:40,840 INFO L421 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse21 (= 9 ~a21~0)) (.cse4 (= 5 ~a15~0)) (.cse16 (not (= 1 |old(~a24~0)|)))) (let ((.cse17 (not (= 8 |old(~a15~0)|))) (.cse5 (= 6 ~a21~0)) (.cse23 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse16)) (.cse24 (not .cse4)) (.cse22 (not .cse21)) (.cse6 (= 1 ~a24~0))) (let ((.cse1 (and .cse22 .cse6)) (.cse7 (and .cse6 (= ~a21~0 7))) (.cse10 (<= (+ ~a12~0 43) 0)) (.cse2 (= ~a21~0 8)) (.cse0 (<= ~a12~0 73282)) (.cse9 (<= ~a15~0 7)) (.cse19 (not (= main_~input~0 0))) (.cse20 (= ~a24~0 1)) (.cse18 (<= ~a12~0 11)) (.cse15 (and (or (not (= 9 |old(~a21~0)|)) .cse17 .cse16 (<= 12 |old(~a12~0)|)) (and .cse5 .cse6 .cse23 .cse24))) (.cse13 (and .cse6 .cse23 .cse24)) (.cse11 (= 7 ~a15~0)) (.cse14 (= ~a21~0 9)) (.cse3 (= ~a21~0 10)) (.cse12 (and .cse22 .cse6 .cse23 .cse24)) (.cse8 (<= 19 ~a12~0))) (or (and .cse0 .cse1 .cse2) (and (and .cse1 .cse3) .cse4) (and .cse5 .cse6 .cse4) (not (= 7 |old(~a21~0)|)) (and .cse7 .cse8) (and .cse9 (and .cse5 .cse10)) (and .cse9 .cse7) (and .cse11 (and .cse12 .cse3)) (and (and .cse13 .cse14) .cse8) (and .cse11 .cse15) (and .cse9 (and (and .cse6 .cse10) .cse14)) .cse16 .cse17 (and .cse12 .cse2) (and (<= 12 ~a12~0) (and (and .cse0 .cse9 .cse14) .cse6)) (and (and .cse18 .cse12) (= 10 ~a21~0)) (= 6 ~a15~0) (not (= 0 (+ |old(~a12~0)| 49))) (and (= 7 ~a21~0) .cse19 (= 8 ~a15~0) .cse20) (and (and .cse21 (and .cse19 (= ~a15~0 8) .cse20)) .cse18) (and .cse15 .cse8) (and .cse13 .cse11 .cse14) (and (and .cse3 .cse12) .cse8))))) [2018-11-18 09:53:40,840 INFO L425 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-11-18 09:53:40,840 INFO L425 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-11-18 09:53:40,840 INFO L425 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-11-18 09:53:40,840 INFO L421 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse10 (= 9 ~a21~0)) (.cse4 (= 5 ~a15~0)) (.cse20 (not (= 1 |old(~a24~0)|)))) (let ((.cse21 (not (= 8 |old(~a15~0)|))) (.cse5 (= 6 ~a21~0)) (.cse23 (or (not (= 6 |old(~a21~0)|)) (not (= 5 |old(~a15~0)|)) .cse20)) (.cse24 (not .cse4)) (.cse22 (not .cse10)) (.cse6 (= 1 ~a24~0))) (let ((.cse1 (and .cse22 .cse6)) (.cse11 (and .cse6 (= ~a21~0 7))) (.cse14 (<= (+ ~a12~0 43) 0)) (.cse2 (= ~a21~0 8)) (.cse0 (<= ~a12~0 73282)) (.cse13 (<= ~a15~0 7)) (.cse7 (<= ~a12~0 11)) (.cse8 (= ~a15~0 8)) (.cse9 (= ~a24~0 1)) (.cse19 (and (or (not (= 9 |old(~a21~0)|)) .cse21 .cse20 (<= 12 |old(~a12~0)|)) (and .cse5 .cse6 .cse23 .cse24))) (.cse17 (and .cse6 .cse23 .cse24)) (.cse15 (= 7 ~a15~0)) (.cse18 (= ~a21~0 9)) (.cse3 (= ~a21~0 10)) (.cse16 (and .cse22 .cse6 .cse23 .cse24)) (.cse12 (<= 19 ~a12~0))) (or (and .cse0 .cse1 .cse2) (and (and .cse1 .cse3) .cse4) (and .cse5 .cse6 .cse4) (not (= 7 |old(~a21~0)|)) (and .cse7 (and (and .cse8 .cse9) .cse10)) (and .cse11 .cse12) (and .cse13 (and .cse5 .cse14)) (and .cse13 .cse11) (and .cse15 (and .cse16 .cse3)) (and (and .cse17 .cse18) .cse12) (and .cse15 .cse19) (and .cse13 (and (and .cse6 .cse14) .cse18)) .cse20 .cse21 (and .cse16 .cse2) (and (<= 12 ~a12~0) (and (and .cse0 .cse13 .cse18) .cse6)) (and (and .cse7 .cse16) (= 10 ~a21~0)) (= 6 ~a15~0) (not (= 0 (+ |old(~a12~0)| 49))) (and (= 7 ~a21~0) .cse8 .cse9) (and .cse19 .cse12) (and .cse17 .cse15 .cse18) (and (and .cse3 .cse16) .cse12))))) [2018-11-18 09:53:40,840 INFO L425 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-11-18 09:53:40,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:53:40 BoogieIcfgContainer [2018-11-18 09:53:40,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 09:53:40,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:53:40,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:53:40,855 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:53:40,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:48:52" (3/4) ... [2018-11-18 09:53:40,864 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 09:53:40,870 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 09:53:40,870 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-18 09:53:40,871 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 09:53:40,888 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 09:53:40,889 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 09:53:40,932 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((a12 <= 73282 && !(9 == a21) && 1 == a24) && a21 == 8) || (((!(9 == a21) && 1 == a24) && a21 == 10) && 5 == a15)) || ((6 == a21 && 1 == a24) && 5 == a15)) || !(7 == \old(a21))) || (a12 <= 11 && (a15 == 8 && a24 == 1) && 9 == a21)) || ((1 == a24 && a21 == 7) && 19 <= a12)) || (a15 <= 7 && 6 == a21 && a12 + 43 <= 0)) || (a15 <= 7 && 1 == a24 && a21 == 7)) || (7 == a15 && (((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 10)) || ((((1 == a24 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 9) && 19 <= a12)) || (7 == a15 && (((!(9 == \old(a21)) || !(8 == \old(a15))) || !(1 == \old(a24))) || 12 <= \old(a12)) && ((6 == a21 && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15))) || (a15 <= 7 && (1 == a24 && a12 + 43 <= 0) && a21 == 9)) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 8)) || (12 <= a12 && ((a12 <= 73282 && a15 <= 7) && a21 == 9) && 1 == a24)) || ((a12 <= 11 && ((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 10 == a21)) || 6 == a15) || !(0 == \old(a12) + 49)) || ((7 == a21 && a15 == 8) && a24 == 1)) || (((((!(9 == \old(a21)) || !(8 == \old(a15))) || !(1 == \old(a24))) || 12 <= \old(a12)) && ((6 == a21 && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 19 <= a12)) || ((((1 == a24 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 7 == a15) && a21 == 9)) || ((a21 == 10 && ((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 19 <= a12) [2018-11-18 09:53:41,003 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3782c3f3-dd61-431e-b801-46e96cfffeb5/bin-2019/utaipan/witness.graphml [2018-11-18 09:53:41,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:53:41,004 INFO L168 Benchmark]: Toolchain (without parser) took 289871.87 ms. Allocated memory was 1.0 GB in the beginning and 5.1 GB in the end (delta: 4.0 GB). Free memory was 952.8 MB in the beginning and 4.1 GB in the end (delta: -3.1 GB). Peak memory consumption was 899.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:53:41,004 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:53:41,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.8 MB in the beginning and 909.9 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:53:41,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 909.9 MB in the beginning and 1.1 GB in the end (delta: -208.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:53:41,008 INFO L168 Benchmark]: Boogie Preprocessor took 62.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:53:41,008 INFO L168 Benchmark]: RCFGBuilder took 1187.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.3 MB in the end (delta: 124.9 MB). Peak memory consumption was 124.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:53:41,008 INFO L168 Benchmark]: TraceAbstraction took 287858.31 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 988.3 MB in the beginning and 4.1 GB in the end (delta: -3.1 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. [2018-11-18 09:53:41,009 INFO L168 Benchmark]: Witness Printer took 148.01 ms. Allocated memory is still 5.1 GB. Free memory was 4.1 GB in the beginning and 4.1 GB in the end (delta: 2.1 kB). Peak memory consumption was 2.1 kB. Max. memory is 11.5 GB. [2018-11-18 09:53:41,010 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 500.26 ms. Allocated memory is still 1.0 GB. Free memory was 952.8 MB in the beginning and 909.9 MB in the end (delta: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 909.9 MB in the beginning and 1.1 GB in the end (delta: -208.8 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1187.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.3 MB in the end (delta: 124.9 MB). Peak memory consumption was 124.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 287858.31 ms. Allocated memory was 1.2 GB in the beginning and 5.1 GB in the end (delta: 3.9 GB). Free memory was 988.3 MB in the beginning and 4.1 GB in the end (delta: -3.1 GB). Peak memory consumption was 4.2 GB. Max. memory is 11.5 GB. * Witness Printer took 148.01 ms. Allocated memory is still 5.1 GB. Free memory was 4.1 GB in the beginning and 4.1 GB in the end (delta: 2.1 kB). Peak memory consumption was 2.1 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((a12 <= 73282 && !(9 == a21) && 1 == a24) && a21 == 8) || (((!(9 == a21) && 1 == a24) && a21 == 10) && 5 == a15)) || ((6 == a21 && 1 == a24) && 5 == a15)) || !(7 == \old(a21))) || (a12 <= 11 && (a15 == 8 && a24 == 1) && 9 == a21)) || ((1 == a24 && a21 == 7) && 19 <= a12)) || (a15 <= 7 && 6 == a21 && a12 + 43 <= 0)) || (a15 <= 7 && 1 == a24 && a21 == 7)) || (7 == a15 && (((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 10)) || ((((1 == a24 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 9) && 19 <= a12)) || (7 == a15 && (((!(9 == \old(a21)) || !(8 == \old(a15))) || !(1 == \old(a24))) || 12 <= \old(a12)) && ((6 == a21 && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15))) || (a15 <= 7 && (1 == a24 && a12 + 43 <= 0) && a21 == 9)) || !(1 == \old(a24))) || !(8 == \old(a15))) || ((((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && a21 == 8)) || (12 <= a12 && ((a12 <= 73282 && a15 <= 7) && a21 == 9) && 1 == a24)) || ((a12 <= 11 && ((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 10 == a21)) || 6 == a15) || !(0 == \old(a12) + 49)) || ((7 == a21 && a15 == 8) && a24 == 1)) || (((((!(9 == \old(a21)) || !(8 == \old(a15))) || !(1 == \old(a24))) || 12 <= \old(a12)) && ((6 == a21 && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 19 <= a12)) || ((((1 == a24 && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 7 == a15) && a21 == 9)) || ((a21 == 10 && ((!(9 == a21) && 1 == a24) && ((!(6 == \old(a21)) || !(5 == \old(a15))) || !(1 == \old(a24)))) && !(5 == a15)) && 19 <= a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 287.7s OverallTime, 21 OverallIterations, 16 TraceHistogramMax, 129.5s AutomataDifference, 0.0s DeadEndRemovalTime, 10.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 2244 SDtfs, 54149 SDslu, 5220 SDs, 0 SdLazy, 68288 SolverSat, 7222 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.6s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 33300 GetRequests, 32627 SyntacticMatches, 14 SemanticMatches, 659 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10466 ImplicationChecksByTransitivity, 14.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19674occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 93.7s AbstIntTime, 17 AbstIntIterations, 4 AbstIntStrong, 0.9975890897020261 AbsIntWeakeningRatio, 0.07745664739884393 AbsIntAvgWeakeningVarsNumRemoved, 16.13121387283237 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 7454 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 620 PreInvPairs, 796 NumberOfFragments, 1544 HoareAnnotationTreeSize, 620 FomulaSimplifications, 2191713 FormulaSimplificationTreeSizeReduction, 2.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1094757 FormulaSimplificationTreeSizeReductionInter, 7.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 25.0s InterpolantComputationTime, 34779 NumberOfCodeBlocks, 34779 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 50070 ConstructedInterpolants, 0 QuantifiedInterpolants, 205250392 SizeOfPredicates, 41 NumberOfNonLiveVariables, 20973 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 47 InterpolantComputations, 4 PerfectInterpolantSequences, 169272/189804 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...