./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label38_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label38_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/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 1c0111291159f315d33314476dea002ae045da84 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 14:25:09,364 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 14:25:09,365 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 14:25:09,371 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 14:25:09,371 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 14:25:09,371 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 14:25:09,372 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 14:25:09,373 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 14:25:09,374 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 14:25:09,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 14:25:09,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 14:25:09,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 14:25:09,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 14:25:09,376 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 14:25:09,377 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 14:25:09,378 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 14:25:09,378 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 14:25:09,379 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 14:25:09,380 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 14:25:09,380 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 14:25:09,381 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 14:25:09,381 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 14:25:09,382 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 14:25:09,383 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 14:25:09,383 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 14:25:09,383 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 14:25:09,383 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 14:25:09,384 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 14:25:09,384 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 14:25:09,385 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 14:25:09,385 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 14:25:09,385 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 14:25:09,385 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 14:25:09,385 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 14:25:09,386 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 14:25:09,386 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 14:25:09,386 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 14:25:09,393 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 14:25:09,393 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 14:25:09,394 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 14:25:09,394 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 14:25:09,394 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 14:25:09,394 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 14:25:09,394 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 14:25:09,394 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 14:25:09,394 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 14:25:09,394 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 14:25:09,394 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 14:25:09,395 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 14:25:09,395 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 14:25:09,395 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 14:25:09,395 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 14:25:09,395 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 14:25:09,395 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 14:25:09,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 14:25:09,396 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 14:25:09,396 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 14:25:09,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 14:25:09,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 14:25:09,397 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 14:25:09,397 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 14:25:09,397 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 14:25:09,397 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 14:25:09,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 14:25:09,397 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 14:25:09,397 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_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/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 -> 1c0111291159f315d33314476dea002ae045da84 [2018-12-08 14:25:09,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 14:25:09,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 14:25:09,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 14:25:09,428 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 14:25:09,428 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 14:25:09,429 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label38_true-unreach-call.c [2018-12-08 14:25:09,468 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/data/321df2384/cba6e701678746d1b5407e46389ddbc7/FLAG8c853a0ab [2018-12-08 14:25:09,853 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 14:25:09,853 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/sv-benchmarks/c/eca-rers2012/Problem10_label38_true-unreach-call.c [2018-12-08 14:25:09,859 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/data/321df2384/cba6e701678746d1b5407e46389ddbc7/FLAG8c853a0ab [2018-12-08 14:25:10,201 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/data/321df2384/cba6e701678746d1b5407e46389ddbc7 [2018-12-08 14:25:10,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 14:25:10,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 14:25:10,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 14:25:10,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 14:25:10,206 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 14:25:10,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f72baf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10, skipping insertion in model container [2018-12-08 14:25:10,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 14:25:10,242 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 14:25:10,430 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 14:25:10,433 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 14:25:10,483 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 14:25:10,532 INFO L195 MainTranslator]: Completed translation [2018-12-08 14:25:10,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10 WrapperNode [2018-12-08 14:25:10,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 14:25:10,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 14:25:10,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 14:25:10,533 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 14:25:10,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 14:25:10,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 14:25:10,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 14:25:10,553 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 14:25:10,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... [2018-12-08 14:25:10,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 14:25:10,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 14:25:10,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 14:25:10,591 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 14:25:10,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 14:25:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 14:25:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 14:25:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-12-08 14:25:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-12-08 14:25:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 14:25:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 14:25:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 14:25:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 14:25:11,198 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 14:25:11,198 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-08 14:25:11,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:25:11 BoogieIcfgContainer [2018-12-08 14:25:11,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 14:25:11,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 14:25:11,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 14:25:11,200 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 14:25:11,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 02:25:10" (1/3) ... [2018-12-08 14:25:11,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76924fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 02:25:11, skipping insertion in model container [2018-12-08 14:25:11,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:25:10" (2/3) ... [2018-12-08 14:25:11,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76924fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 02:25:11, skipping insertion in model container [2018-12-08 14:25:11,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:25:11" (3/3) ... [2018-12-08 14:25:11,202 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label38_true-unreach-call.c [2018-12-08 14:25:11,208 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 14:25:11,212 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 14:25:11,221 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 14:25:11,246 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 14:25:11,246 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 14:25:11,246 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 14:25:11,247 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 14:25:11,247 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 14:25:11,247 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 14:25:11,247 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 14:25:11,247 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 14:25:11,262 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2018-12-08 14:25:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-12-08 14:25:11,266 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:25:11,267 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:25:11,268 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:25:11,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:11,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1813043417, now seen corresponding path program 1 times [2018-12-08 14:25:11,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:25:11,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:11,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:11,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:11,305 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:25:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:25:11,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 14:25:11,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 14:25:11,460 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:25:11,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 14:25:11,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 14:25:11,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 14:25:11,474 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2018-12-08 14:25:11,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:25:11,956 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2018-12-08 14:25:11,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 14:25:11,957 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-12-08 14:25:11,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:25:11,965 INFO L225 Difference]: With dead ends: 571 [2018-12-08 14:25:11,965 INFO L226 Difference]: Without dead ends: 294 [2018-12-08 14:25:11,968 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 14:25:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2018-12-08 14:25:12,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2018-12-08 14:25:12,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2018-12-08 14:25:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 436 transitions. [2018-12-08 14:25:12,013 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 436 transitions. Word has length 38 [2018-12-08 14:25:12,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:25:12,013 INFO L480 AbstractCegarLoop]: Abstraction has 294 states and 436 transitions. [2018-12-08 14:25:12,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 14:25:12,013 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 436 transitions. [2018-12-08 14:25:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-12-08 14:25:12,017 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:25:12,017 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:25:12,017 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:25:12,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:12,018 INFO L82 PathProgramCache]: Analyzing trace with hash -32611371, now seen corresponding path program 1 times [2018-12-08 14:25:12,018 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:25:12,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:12,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:12,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:12,019 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:25:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:12,142 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 14:25:12,143 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 14:25:12,143 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 14:25:12,143 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 126 with the following transitions: [2018-12-08 14:25:12,145 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 14:25:12,170 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 14:25:12,170 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 14:25:12,361 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 14:25:12,362 INFO L272 AbstractInterpreter]: Visited 91 different actions 91 times. Never merged. Never widened. Performed 823 root evaluator evaluations with a maximum evaluation depth of 3. Performed 823 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 24 variables. [2018-12-08 14:25:12,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:12,368 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 14:25:12,528 INFO L227 lantSequenceWeakener]: Weakened 119 states. On average, predicates are now at 73.3% of their original sizes. [2018-12-08 14:25:12,528 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 14:25:12,556 INFO L418 sIntCurrentIteration]: We unified 124 AI predicates to 124 [2018-12-08 14:25:12,557 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 14:25:12,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 14:25:12,557 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2018-12-08 14:25:12,557 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:25:12,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 14:25:12,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 14:25:12,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 14:25:12,559 INFO L87 Difference]: Start difference. First operand 294 states and 436 transitions. Second operand 6 states. [2018-12-08 14:25:22,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:25:22,330 INFO L93 Difference]: Finished difference Result 726 states and 1078 transitions. [2018-12-08 14:25:22,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 14:25:22,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-12-08 14:25:22,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:25:22,332 INFO L225 Difference]: With dead ends: 726 [2018-12-08 14:25:22,332 INFO L226 Difference]: Without dead ends: 438 [2018-12-08 14:25:22,333 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 14:25:22,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2018-12-08 14:25:22,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 437. [2018-12-08 14:25:22,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2018-12-08 14:25:22,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 585 transitions. [2018-12-08 14:25:22,348 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 585 transitions. Word has length 125 [2018-12-08 14:25:22,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:25:22,349 INFO L480 AbstractCegarLoop]: Abstraction has 437 states and 585 transitions. [2018-12-08 14:25:22,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 14:25:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 585 transitions. [2018-12-08 14:25:22,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-12-08 14:25:22,351 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:25:22,351 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-12-08 14:25:22,351 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:25:22,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:22,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1837442610, now seen corresponding path program 1 times [2018-12-08 14:25:22,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:25:22,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:22,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:22,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:22,352 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:25:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-12-08 14:25:22,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 14:25:22,492 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 14:25:22,492 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2018-12-08 14:25:22,492 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 14:25:22,494 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 14:25:22,495 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 14:25:23,429 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 14:25:23,429 INFO L272 AbstractInterpreter]: Visited 95 different actions 279 times. Merged at 6 different actions 14 times. Never widened. Performed 2699 root evaluator evaluations with a maximum evaluation depth of 20. Performed 2699 inverse root evaluator evaluations with a maximum inverse evaluation depth of 20. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-08 14:25:23,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:23,432 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 14:25:23,812 INFO L227 lantSequenceWeakener]: Weakened 192 states. On average, predicates are now at 75.41% of their original sizes. [2018-12-08 14:25:23,812 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 14:25:23,881 INFO L418 sIntCurrentIteration]: We unified 194 AI predicates to 194 [2018-12-08 14:25:23,881 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 14:25:23,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 14:25:23,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-12-08 14:25:23,881 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:25:23,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 14:25:23,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 14:25:23,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 14:25:23,882 INFO L87 Difference]: Start difference. First operand 437 states and 585 transitions. Second operand 10 states. [2018-12-08 14:25:40,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:25:40,826 INFO L93 Difference]: Finished difference Result 1179 states and 1700 transitions. [2018-12-08 14:25:40,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-08 14:25:40,827 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2018-12-08 14:25:40,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:25:40,830 INFO L225 Difference]: With dead ends: 1179 [2018-12-08 14:25:40,830 INFO L226 Difference]: Without dead ends: 891 [2018-12-08 14:25:40,831 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 205 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-12-08 14:25:40,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2018-12-08 14:25:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 876. [2018-12-08 14:25:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2018-12-08 14:25:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1116 transitions. [2018-12-08 14:25:40,849 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1116 transitions. Word has length 195 [2018-12-08 14:25:40,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:25:40,850 INFO L480 AbstractCegarLoop]: Abstraction has 876 states and 1116 transitions. [2018-12-08 14:25:40,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 14:25:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1116 transitions. [2018-12-08 14:25:40,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-12-08 14:25:40,854 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:25:40,855 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:25:40,855 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:25:40,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:40,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1460015851, now seen corresponding path program 1 times [2018-12-08 14:25:40,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:25:40,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:40,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:40,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:40,856 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:25:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:25:40,981 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 14:25:40,981 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 14:25:40,982 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-12-08 14:25:40,982 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [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], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [718], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 14:25:40,985 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 14:25:40,986 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 14:25:41,080 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 14:25:41,080 INFO L272 AbstractInterpreter]: Visited 134 different actions 265 times. Merged at 6 different actions 8 times. Never widened. Performed 2810 root evaluator evaluations with a maximum evaluation depth of 10. Performed 2810 inverse root evaluator evaluations with a maximum inverse evaluation depth of 10. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-12-08 14:25:41,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:41,082 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 14:25:41,082 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 14:25:41,082 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 14:25:41,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:41,089 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 14:25:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:41,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 14:25:41,237 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:25:41,237 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 14:25:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:25:41,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 14:25:41,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-12-08 14:25:41,362 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 14:25:41,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 14:25:41,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 14:25:41,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-08 14:25:41,363 INFO L87 Difference]: Start difference. First operand 876 states and 1116 transitions. Second operand 9 states. [2018-12-08 14:25:42,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:25:42,467 INFO L93 Difference]: Finished difference Result 2273 states and 3210 transitions. [2018-12-08 14:25:42,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 14:25:42,468 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 242 [2018-12-08 14:25:42,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:25:42,473 INFO L225 Difference]: With dead ends: 2273 [2018-12-08 14:25:42,473 INFO L226 Difference]: Without dead ends: 1081 [2018-12-08 14:25:42,475 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 487 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2018-12-08 14:25:42,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2018-12-08 14:25:42,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1061. [2018-12-08 14:25:42,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2018-12-08 14:25:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1271 transitions. [2018-12-08 14:25:42,502 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1271 transitions. Word has length 242 [2018-12-08 14:25:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:25:42,502 INFO L480 AbstractCegarLoop]: Abstraction has 1061 states and 1271 transitions. [2018-12-08 14:25:42,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 14:25:42,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1271 transitions. [2018-12-08 14:25:42,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-12-08 14:25:42,506 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:25:42,506 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:25:42,506 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:25:42,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:42,507 INFO L82 PathProgramCache]: Analyzing trace with hash 504642803, now seen corresponding path program 1 times [2018-12-08 14:25:42,507 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:25:42,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:42,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:42,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:42,507 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:25:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:42,668 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 63 proven. 46 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-12-08 14:25:42,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 14:25:42,668 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 14:25:42,668 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 279 with the following transitions: [2018-12-08 14:25:42,669 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [718], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 14:25:42,672 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 14:25:42,672 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 14:25:42,769 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 14:25:42,769 INFO L272 AbstractInterpreter]: Visited 133 different actions 260 times. Merged at 4 different actions 4 times. Never widened. Performed 2709 root evaluator evaluations with a maximum evaluation depth of 13. Performed 2709 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-12-08 14:25:42,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:42,776 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 14:25:42,926 INFO L227 lantSequenceWeakener]: Weakened 275 states. On average, predicates are now at 77.95% of their original sizes. [2018-12-08 14:25:42,926 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 14:25:42,962 INFO L418 sIntCurrentIteration]: We unified 277 AI predicates to 277 [2018-12-08 14:25:42,963 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 14:25:42,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 14:25:42,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-12-08 14:25:42,963 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:25:42,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 14:25:42,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 14:25:42,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 14:25:42,964 INFO L87 Difference]: Start difference. First operand 1061 states and 1271 transitions. Second operand 10 states. [2018-12-08 14:25:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:25:53,004 INFO L93 Difference]: Finished difference Result 2134 states and 2654 transitions. [2018-12-08 14:25:53,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-08 14:25:53,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 278 [2018-12-08 14:25:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:25:53,009 INFO L225 Difference]: With dead ends: 2134 [2018-12-08 14:25:53,009 INFO L226 Difference]: Without dead ends: 1222 [2018-12-08 14:25:53,012 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 288 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-12-08 14:25:53,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2018-12-08 14:25:53,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1178. [2018-12-08 14:25:53,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2018-12-08 14:25:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1374 transitions. [2018-12-08 14:25:53,041 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1374 transitions. Word has length 278 [2018-12-08 14:25:53,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:25:53,041 INFO L480 AbstractCegarLoop]: Abstraction has 1178 states and 1374 transitions. [2018-12-08 14:25:53,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 14:25:53,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1374 transitions. [2018-12-08 14:25:53,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-12-08 14:25:53,045 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:25:53,045 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:25:53,046 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:25:53,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:53,046 INFO L82 PathProgramCache]: Analyzing trace with hash -880389580, now seen corresponding path program 1 times [2018-12-08 14:25:53,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:25:53,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:53,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:53,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:53,047 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:25:53,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 281 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-08 14:25:53,174 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 14:25:53,174 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 14:25:53,175 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 351 with the following transitions: [2018-12-08 14:25:53,175 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [718], [792], [796], [805], [809], [811], [816], [817], [818], [820], [821] [2018-12-08 14:25:53,176 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 14:25:53,177 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 14:25:53,307 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 14:25:53,308 INFO L272 AbstractInterpreter]: Visited 135 different actions 400 times. Merged at 7 different actions 17 times. Never widened. Performed 4279 root evaluator evaluations with a maximum evaluation depth of 13. Performed 4279 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 4 fixpoints after 3 different actions. Largest state had 24 variables. [2018-12-08 14:25:53,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:53,311 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 14:25:53,312 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 14:25:53,312 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 14:25:53,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:53,318 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 14:25:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:53,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 14:25:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 281 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-08 14:25:53,417 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 14:25:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 281 proven. 2 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-12-08 14:25:53,523 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 14:25:53,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2018-12-08 14:25:53,523 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 14:25:53,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 14:25:53,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 14:25:53,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-08 14:25:53,524 INFO L87 Difference]: Start difference. First operand 1178 states and 1374 transitions. Second operand 7 states. [2018-12-08 14:25:54,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:25:54,093 INFO L93 Difference]: Finished difference Result 3127 states and 3769 transitions. [2018-12-08 14:25:54,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 14:25:54,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 350 [2018-12-08 14:25:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:25:54,098 INFO L225 Difference]: With dead ends: 3127 [2018-12-08 14:25:54,098 INFO L226 Difference]: Without dead ends: 2098 [2018-12-08 14:25:54,100 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 699 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-12-08 14:25:54,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2018-12-08 14:25:54,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2092. [2018-12-08 14:25:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2092 states. [2018-12-08 14:25:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2431 transitions. [2018-12-08 14:25:54,127 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2431 transitions. Word has length 350 [2018-12-08 14:25:54,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:25:54,127 INFO L480 AbstractCegarLoop]: Abstraction has 2092 states and 2431 transitions. [2018-12-08 14:25:54,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 14:25:54,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2431 transitions. [2018-12-08 14:25:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2018-12-08 14:25:54,130 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:25:54,131 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:25:54,131 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:25:54,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:25:54,131 INFO L82 PathProgramCache]: Analyzing trace with hash -932458931, now seen corresponding path program 1 times [2018-12-08 14:25:54,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:25:54,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:54,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:25:54,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:25:54,132 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:25:54,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:25:54,219 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-12-08 14:25:54,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 14:25:54,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 14:25:54,219 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:25:54,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 14:25:54,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 14:25:54,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 14:25:54,220 INFO L87 Difference]: Start difference. First operand 2092 states and 2431 transitions. Second operand 4 states. [2018-12-08 14:25:54,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:25:54,492 INFO L93 Difference]: Finished difference Result 2092 states and 2431 transitions. [2018-12-08 14:25:54,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 14:25:54,492 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 363 [2018-12-08 14:25:54,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:25:54,493 INFO L225 Difference]: With dead ends: 2092 [2018-12-08 14:25:54,493 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 14:25:54,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 14:25:54,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 14:25:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 14:25:54,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 14:25:54,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 14:25:54,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 363 [2018-12-08 14:25:54,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:25:54,496 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 14:25:54,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 14:25:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 14:25:54,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 14:25:54,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 14:25:54,849 WARN L180 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a19~0)| ~a19~0) (= ~a1~0 |old(~a1~0)|)) [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point L465(lines 465 572) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,938 INFO L448 ceAbstractionStarter]: For program point L499(lines 499 572) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L301(lines 301 572) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L335(lines 335 572) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L236(lines 236 572) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L534(lines 534 572) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L436(lines 436 572) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L403(lines 403 572) no Hoare annotation was computed. [2018-12-08 14:25:54,939 INFO L448 ceAbstractionStarter]: For program point L370(lines 370 572) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L271(lines 271 572) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L569(lines 569 572) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L239(lines 239 572) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L504(lines 504 572) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L471(lines 471 572) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 572) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L340(lines 340 572) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-12-08 14:25:54,940 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L540(lines 540 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L408(lines 408 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L375(lines 375 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L210(lines 210 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L442(lines 442 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L277(lines 277 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L244(lines 244 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L509(lines 509 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L476(lines 476 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L378(lines 378 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 572) no Hoare annotation was computed. [2018-12-08 14:25:54,941 INFO L448 ceAbstractionStarter]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L545(lines 545 572) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L215(lines 215 572) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L414(lines 414 572) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L249(lines 249 572) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L514(lines 514 572) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L481(lines 481 572) no Hoare annotation was computed. [2018-12-08 14:25:54,942 INFO L448 ceAbstractionStarter]: For program point L448(lines 448 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L283(lines 283 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L548(lines 548 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L383(lines 383 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L317(lines 317 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L517(lines 517 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L220(lines 220 572) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-12-08 14:25:54,943 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L419(lines 419 572) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L320(lines 320 572) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L254(lines 254 572) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L354(lines 354 572) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L487(lines 487 572) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L454(lines 454 572) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L388(lines 388 572) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L554(lines 554 572) no Hoare annotation was computed. [2018-12-08 14:25:54,944 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 572) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse1 (= 4 |old(~a10~0)|)) (.cse5 (not (= 14 ~a4~0))) (.cse8 (= 0 |old(~a10~0)|)) (.cse6 (not (= 0 ~a12~0))) (.cse9 (not (= 0 (mod |old(~a10~0)| 2)))) (.cse7 (not (= 9 |old(~a19~0)|))) (.cse4 (= ~a1~0 23)) (.cse3 (= ~a10~0 0)) (.cse0 (= ~a1~0 |old(~a1~0)|)) (.cse2 (= |calculate_output_#in~input| 0))) (and (or (and (= 6 ~a19~0) .cse0) (not (= 6 |old(~a19~0)|))) (or .cse0 (= 7 |old(~a19~0)|) .cse1) (or (not (= 8 |old(~a19~0)|)) (= 8 ~a19~0)) (or (and (= |old(~a19~0)| ~a19~0) (not (= ~a10~0 4))) .cse1) (or .cse2 (or (and .cse3 .cse4) (= ~a10~0 1)) (and (or .cse5 .cse6 .cse7 (not (= 23 |old(~a1~0)|)) (not .cse8)) (or (not (= 1 |old(~a10~0)|)) .cse5 .cse6 .cse7))) (or .cse5 .cse6 .cse9 (= (mod ~a10~0 2) 0) .cse7 .cse2) (or (or .cse5 .cse8) .cse6 .cse9 .cse7 (and (= ~a19~0 9) (or .cse4 (not .cse3)) .cse0) .cse2))) [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L357(lines 357 572) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L291(lines 291 572) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L225(lines 225 572) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L523(lines 523 572) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-12-08 14:25:54,945 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L425(lines 425 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L326(lines 326 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L260(lines 260 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L393(lines 393 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L360(lines 360 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L526(lines 526 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L493(lines 493 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L296(lines 296 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 572) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,946 INFO L448 ceAbstractionStarter]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L529(lines 529 572) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L430(lines 430 572) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 572) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L563(lines 563 572) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L398(lines 398 572) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 572) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 9) (= ~a10~0 0) (= ~a12~0 0) (= ~a1~0 23) (= ~a4~0 14)) [2018-12-08 14:25:54,947 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 14:25:54,947 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 14 ~a4~0)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (= 0 |old(~a10~0)|)) (and (= ~a19~0 9) (= ~a10~0 0) (= ~a1~0 |old(~a1~0)|))) [2018-12-08 14:25:54,947 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2018-12-08 14:25:54,948 INFO L444 ceAbstractionStarter]: At program point L590(line 590) the Hoare annotation is: (or (= 8 ~a19~0) (= 6 ~a19~0) (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (not (= ~a10~0 4)) (and (not (= main_~input~0 0)) (= ~a19~0 9)) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2018-12-08 14:25:54,948 INFO L448 ceAbstractionStarter]: For program point L590-1(line 590) no Hoare annotation was computed. [2018-12-08 14:25:54,948 INFO L448 ceAbstractionStarter]: For program point L587(line 587) no Hoare annotation was computed. [2018-12-08 14:25:54,948 INFO L444 ceAbstractionStarter]: At program point L582-2(lines 582 591) the Hoare annotation is: (or (= 8 ~a19~0) (= 6 ~a19~0) (not (= 14 ~a4~0)) (not (= 23 |old(~a1~0)|)) (not (= ~a10~0 4)) (= ~a19~0 9) (not (= 0 ~a12~0)) (not (= 9 |old(~a19~0)|)) (not (= 0 |old(~a10~0)|))) [2018-12-08 14:25:54,948 INFO L448 ceAbstractionStarter]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2018-12-08 14:25:54,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 02:25:54 BoogieIcfgContainer [2018-12-08 14:25:54,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 14:25:54,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 14:25:54,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 14:25:54,954 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 14:25:54,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:25:11" (3/4) ... [2018-12-08 14:25:54,957 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 14:25:54,960 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 14:25:54,960 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-12-08 14:25:54,961 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 14:25:54,966 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-08 14:25:54,966 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 14:25:54,983 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((8 == a19 || 6 == a19) || !(14 == a4)) || !(23 == \old(a1))) || !(a10 == 4)) || a19 == 9) || !(0 == a12)) || !(9 == \old(a19))) || !(0 == \old(a10)) [2018-12-08 14:25:55,025 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b18c4709-4e2b-4f62-b4a7-b9a489c7b316/bin-2019/utaipan/witness.graphml [2018-12-08 14:25:55,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 14:25:55,025 INFO L168 Benchmark]: Toolchain (without parser) took 44822.42 ms. Allocated memory was 1.0 GB in the beginning and 4.9 GB in the end (delta: 3.9 GB). Free memory was 947.0 MB in the beginning and 2.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.9 GB. Max. memory is 11.5 GB. [2018-12-08 14:25:55,026 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:25:55,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2018-12-08 14:25:55,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 14:25:55,026 INFO L168 Benchmark]: Boogie Preprocessor took 37.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 14:25:55,026 INFO L168 Benchmark]: RCFGBuilder took 607.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 103.5 MB). Peak memory consumption was 103.5 MB. Max. memory is 11.5 GB. [2018-12-08 14:25:55,026 INFO L168 Benchmark]: TraceAbstraction took 43755.15 ms. Allocated memory was 1.1 GB in the beginning and 4.9 GB in the end (delta: 3.8 GB). Free memory was 973.5 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.7 GB. Max. memory is 11.5 GB. [2018-12-08 14:25:55,027 INFO L168 Benchmark]: Witness Printer took 70.91 ms. Allocated memory is still 4.9 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. [2018-12-08 14:25:55,028 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.90 ms. Allocated memory is still 1.1 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 607.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 973.5 MB in the end (delta: 103.5 MB). Peak memory consumption was 103.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 43755.15 ms. Allocated memory was 1.1 GB in the beginning and 4.9 GB in the end (delta: 3.8 GB). Free memory was 973.5 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.7 GB. Max. memory is 11.5 GB. * Witness Printer took 70.91 ms. Allocated memory is still 4.9 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 79.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: 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: 582]: Loop Invariant Derived loop invariant: (((((((8 == a19 || 6 == a19) || !(14 == a4)) || !(23 == \old(a1))) || !(a10 == 4)) || a19 == 9) || !(0 == a12)) || !(9 == \old(a19))) || !(0 == \old(a10)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. SAFE Result, 43.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 39.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 330 SDtfs, 3636 SDslu, 341 SDs, 0 SdLazy, 5543 SolverSat, 1152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34.3s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1844 GetRequests, 1766 SyntacticMatches, 6 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2092occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.5s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9966975513350103 AbsIntWeakeningRatio, 0.12100840336134454 AbsIntAvgWeakeningVarsNumRemoved, 14.070588235294117 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 86 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 60 PreInvPairs, 106 NumberOfFragments, 293 HoareAnnotationTreeSize, 60 FomulaSimplifications, 3456 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1313 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 2183 NumberOfCodeBlocks, 2183 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2764 ConstructedInterpolants, 0 QuantifiedInterpolants, 2127114 SizeOfPredicates, 1 NumberOfNonLiveVariables, 981 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 2055/2197 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...