./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label06_true-unreach-call_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label06_true-unreach-call_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/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 cc7fef7e01f0cbe23a4bfb5f51eb1c754f7b3b49 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:23:39,063 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:23:39,065 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:23:39,072 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:23:39,072 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:23:39,073 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:23:39,073 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:23:39,074 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:23:39,075 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:23:39,076 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:23:39,077 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:23:39,077 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:23:39,078 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:23:39,078 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:23:39,079 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:23:39,080 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:23:39,080 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:23:39,082 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:23:39,083 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:23:39,084 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:23:39,085 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:23:39,086 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:23:39,088 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:23:39,088 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:23:39,088 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:23:39,089 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:23:39,089 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:23:39,090 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:23:39,091 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:23:39,091 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:23:39,092 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:23:39,092 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:23:39,092 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:23:39,092 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:23:39,093 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:23:39,094 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:23:39,094 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 21:23:39,104 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:23:39,104 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:23:39,105 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:23:39,105 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:23:39,105 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:23:39,106 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:23:39,106 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:23:39,106 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 21:23:39,106 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:23:39,106 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:23:39,106 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 21:23:39,106 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 21:23:39,106 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:23:39,107 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:23:39,107 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:23:39,107 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:23:39,107 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:23:39,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:23:39,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:23:39,108 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:23:39,108 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:23:39,108 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:23:39,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:23:39,108 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:23:39,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:23:39,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:23:39,109 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:23:39,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 21:23:39,109 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_b70e76f4-a040-47d6-a549-2c377d73d256/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 -> cc7fef7e01f0cbe23a4bfb5f51eb1c754f7b3b49 [2018-11-22 21:23:39,132 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:23:39,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:23:39,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:23:39,143 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:23:39,143 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:23:39,143 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem01_label06_true-unreach-call_false-termination.c [2018-11-22 21:23:39,181 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/data/0fbbe5ec7/54c37cf766bb4c95a2351b59b339d7d1/FLAGb5525b23d [2018-11-22 21:23:39,661 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:23:39,661 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/sv-benchmarks/c/eca-rers2012/Problem01_label06_true-unreach-call_false-termination.c [2018-11-22 21:23:39,670 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/data/0fbbe5ec7/54c37cf766bb4c95a2351b59b339d7d1/FLAGb5525b23d [2018-11-22 21:23:39,683 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/data/0fbbe5ec7/54c37cf766bb4c95a2351b59b339d7d1 [2018-11-22 21:23:39,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:23:39,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:23:39,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:23:39,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:23:39,690 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:23:39,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:23:39" (1/1) ... [2018-11-22 21:23:39,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fbeed0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:39, skipping insertion in model container [2018-11-22 21:23:39,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:23:39" (1/1) ... [2018-11-22 21:23:39,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:23:39,741 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:23:39,965 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:23:39,967 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:23:40,032 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:23:40,045 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:23:40,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40 WrapperNode [2018-11-22 21:23:40,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:23:40,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:23:40,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:23:40,047 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:23:40,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:23:40,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:23:40,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:23:40,122 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:23:40,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... [2018-11-22 21:23:40,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:23:40,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:23:40,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:23:40,173 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:23:40,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:23:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-22 21:23:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:23:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:23:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-22 21:23:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-22 21:23:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:23:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:23:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:23:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:23:41,175 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:23:41,175 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-22 21:23:41,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:41 BoogieIcfgContainer [2018-11-22 21:23:41,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:23:41,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:23:41,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:23:41,178 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:23:41,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:23:39" (1/3) ... [2018-11-22 21:23:41,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0d8353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:23:41, skipping insertion in model container [2018-11-22 21:23:41,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:40" (2/3) ... [2018-11-22 21:23:41,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0d8353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:23:41, skipping insertion in model container [2018-11-22 21:23:41,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:41" (3/3) ... [2018-11-22 21:23:41,181 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label06_true-unreach-call_false-termination.c [2018-11-22 21:23:41,187 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:23:41,193 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:23:41,202 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:23:41,225 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:23:41,226 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:23:41,226 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:23:41,226 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:23:41,226 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:23:41,226 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:23:41,226 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:23:41,226 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:23:41,244 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2018-11-22 21:23:41,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-11-22 21:23:41,254 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:41,255 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:41,257 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:41,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:41,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1251834154, now seen corresponding path program 1 times [2018-11-22 21:23:41,264 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:41,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:41,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:41,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:41,309 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:23:41,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:23:41,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:23:41,624 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:41,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 21:23:41,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:23:41,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:23:41,643 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2018-11-22 21:23:42,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:42,253 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2018-11-22 21:23:42,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:23:42,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2018-11-22 21:23:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:42,265 INFO L225 Difference]: With dead ends: 547 [2018-11-22 21:23:42,266 INFO L226 Difference]: Without dead ends: 338 [2018-11-22 21:23:42,269 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:23:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2018-11-22 21:23:42,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2018-11-22 21:23:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-11-22 21:23:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 539 transitions. [2018-11-22 21:23:42,307 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 539 transitions. Word has length 130 [2018-11-22 21:23:42,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:42,308 INFO L480 AbstractCegarLoop]: Abstraction has 338 states and 539 transitions. [2018-11-22 21:23:42,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 21:23:42,308 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 539 transitions. [2018-11-22 21:23:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-22 21:23:42,312 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:42,312 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:42,316 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:42,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:42,317 INFO L82 PathProgramCache]: Analyzing trace with hash -932424019, now seen corresponding path program 1 times [2018-11-22 21:23:42,317 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:42,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:42,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:42,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:42,318 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:42,426 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:23:42,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:23:42,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 21:23:42,427 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:42,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:23:42,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:23:42,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:23:42,430 INFO L87 Difference]: Start difference. First operand 338 states and 539 transitions. Second operand 6 states. [2018-11-22 21:23:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:43,029 INFO L93 Difference]: Finished difference Result 1067 states and 1776 transitions. [2018-11-22 21:23:43,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 21:23:43,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-11-22 21:23:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:43,034 INFO L225 Difference]: With dead ends: 1067 [2018-11-22 21:23:43,034 INFO L226 Difference]: Without dead ends: 735 [2018-11-22 21:23:43,037 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-22 21:23:43,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2018-11-22 21:23:43,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 720. [2018-11-22 21:23:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2018-11-22 21:23:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 1116 transitions. [2018-11-22 21:23:43,069 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 1116 transitions. Word has length 140 [2018-11-22 21:23:43,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:43,069 INFO L480 AbstractCegarLoop]: Abstraction has 720 states and 1116 transitions. [2018-11-22 21:23:43,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:23:43,069 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 1116 transitions. [2018-11-22 21:23:43,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-22 21:23:43,072 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:43,072 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:43,072 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:43,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:43,073 INFO L82 PathProgramCache]: Analyzing trace with hash -188990609, now seen corresponding path program 1 times [2018-11-22 21:23:43,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:43,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:43,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:43,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:43,074 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:43,326 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:23:43,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:23:43,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 21:23:43,326 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:43,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 21:23:43,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 21:23:43,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:23:43,327 INFO L87 Difference]: Start difference. First operand 720 states and 1116 transitions. Second operand 5 states. [2018-11-22 21:23:43,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:43,825 INFO L93 Difference]: Finished difference Result 1569 states and 2474 transitions. [2018-11-22 21:23:43,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:23:43,825 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-11-22 21:23:43,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:43,829 INFO L225 Difference]: With dead ends: 1569 [2018-11-22 21:23:43,829 INFO L226 Difference]: Without dead ends: 717 [2018-11-22 21:23:43,831 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:23:43,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2018-11-22 21:23:43,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2018-11-22 21:23:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2018-11-22 21:23:43,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1040 transitions. [2018-11-22 21:23:43,849 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1040 transitions. Word has length 141 [2018-11-22 21:23:43,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:43,850 INFO L480 AbstractCegarLoop]: Abstraction has 717 states and 1040 transitions. [2018-11-22 21:23:43,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 21:23:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1040 transitions. [2018-11-22 21:23:43,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-11-22 21:23:43,852 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:43,852 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:43,853 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:43,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:43,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1244428519, now seen corresponding path program 1 times [2018-11-22 21:23:43,853 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:43,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:43,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:43,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:43,854 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:23:43,957 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:23:43,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:23:43,958 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:43,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 21:23:43,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:23:43,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:23:43,959 INFO L87 Difference]: Start difference. First operand 717 states and 1040 transitions. Second operand 3 states. [2018-11-22 21:23:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:44,325 INFO L93 Difference]: Finished difference Result 1860 states and 2738 transitions. [2018-11-22 21:23:44,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:23:44,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2018-11-22 21:23:44,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:44,330 INFO L225 Difference]: With dead ends: 1860 [2018-11-22 21:23:44,331 INFO L226 Difference]: Without dead ends: 1149 [2018-11-22 21:23:44,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:23:44,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2018-11-22 21:23:44,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1146. [2018-11-22 21:23:44,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1146 states. [2018-11-22 21:23:44,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1546 transitions. [2018-11-22 21:23:44,359 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1546 transitions. Word has length 145 [2018-11-22 21:23:44,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:44,360 INFO L480 AbstractCegarLoop]: Abstraction has 1146 states and 1546 transitions. [2018-11-22 21:23:44,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 21:23:44,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1546 transitions. [2018-11-22 21:23:44,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-11-22 21:23:44,364 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:44,364 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:44,365 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:44,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:44,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1960590570, now seen corresponding path program 1 times [2018-11-22 21:23:44,365 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:44,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:44,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:44,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:44,366 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-22 21:23:44,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:23:44,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:23:44,471 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:44,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:23:44,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:23:44,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:23:44,473 INFO L87 Difference]: Start difference. First operand 1146 states and 1546 transitions. Second operand 4 states. [2018-11-22 21:23:44,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:44,950 INFO L93 Difference]: Finished difference Result 3947 states and 5569 transitions. [2018-11-22 21:23:44,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:23:44,951 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2018-11-22 21:23:44,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:44,959 INFO L225 Difference]: With dead ends: 3947 [2018-11-22 21:23:44,959 INFO L226 Difference]: Without dead ends: 2807 [2018-11-22 21:23:44,963 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 [2018-11-22 21:23:44,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2807 states. [2018-11-22 21:23:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2777. [2018-11-22 21:23:45,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2777 states. [2018-11-22 21:23:45,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2777 states to 2777 states and 3631 transitions. [2018-11-22 21:23:45,007 INFO L78 Accepts]: Start accepts. Automaton has 2777 states and 3631 transitions. Word has length 165 [2018-11-22 21:23:45,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:45,007 INFO L480 AbstractCegarLoop]: Abstraction has 2777 states and 3631 transitions. [2018-11-22 21:23:45,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:23:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2777 states and 3631 transitions. [2018-11-22 21:23:45,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-22 21:23:45,012 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:45,012 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:45,012 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:45,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:45,013 INFO L82 PathProgramCache]: Analyzing trace with hash 425097878, now seen corresponding path program 1 times [2018-11-22 21:23:45,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:45,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:45,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:45,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:45,014 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:45,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:45,126 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:23:45,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:23:45,126 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:23:45,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-11-22 21:23:45,129 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [685], [687], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-22 21:23:45,165 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:23:45,166 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:23:45,502 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 21:23:45,503 INFO L272 AbstractInterpreter]: Visited 131 different actions 131 times. Never merged. Never widened. Performed 1700 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1700 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 42 variables. [2018-11-22 21:23:45,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:45,524 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 21:23:45,845 INFO L227 lantSequenceWeakener]: Weakened 167 states. On average, predicates are now at 80.56% of their original sizes. [2018-11-22 21:23:45,845 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 21:23:45,867 INFO L415 sIntCurrentIteration]: We unified 175 AI predicates to 175 [2018-11-22 21:23:45,867 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 21:23:45,868 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 21:23:45,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-22 21:23:45,868 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:45,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:23:45,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:23:45,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:23:45,869 INFO L87 Difference]: Start difference. First operand 2777 states and 3631 transitions. Second operand 6 states. [2018-11-22 21:23:48,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:48,774 INFO L93 Difference]: Finished difference Result 5684 states and 7419 transitions. [2018-11-22 21:23:48,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 21:23:48,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-11-22 21:23:48,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:48,782 INFO L225 Difference]: With dead ends: 5684 [2018-11-22 21:23:48,782 INFO L226 Difference]: Without dead ends: 2913 [2018-11-22 21:23:48,786 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-22 21:23:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2018-11-22 21:23:48,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2912. [2018-11-22 21:23:48,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2912 states. [2018-11-22 21:23:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2912 states to 2912 states and 3772 transitions. [2018-11-22 21:23:48,832 INFO L78 Accepts]: Start accepts. Automaton has 2912 states and 3772 transitions. Word has length 176 [2018-11-22 21:23:48,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:48,832 INFO L480 AbstractCegarLoop]: Abstraction has 2912 states and 3772 transitions. [2018-11-22 21:23:48,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:23:48,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2912 states and 3772 transitions. [2018-11-22 21:23:48,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-11-22 21:23:48,839 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:48,839 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:48,839 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:48,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:48,839 INFO L82 PathProgramCache]: Analyzing trace with hash -233411727, now seen corresponding path program 1 times [2018-11-22 21:23:48,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:48,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:48,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:48,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:48,840 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 55 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 21:23:48,923 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:23:48,923 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:23:48,923 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-11-22 21:23:48,924 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [685], [687], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-22 21:23:48,928 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:23:48,928 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:23:49,124 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 21:23:49,124 INFO L272 AbstractInterpreter]: Visited 135 different actions 264 times. Merged at 4 different actions 4 times. Never widened. Performed 3404 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3404 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-22 21:23:49,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:49,132 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 21:23:49,380 INFO L227 lantSequenceWeakener]: Weakened 181 states. On average, predicates are now at 82% of their original sizes. [2018-11-22 21:23:49,380 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 21:23:49,436 INFO L415 sIntCurrentIteration]: We unified 183 AI predicates to 183 [2018-11-22 21:23:49,436 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 21:23:49,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 21:23:49,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-22 21:23:49,436 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:49,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 21:23:49,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 21:23:49,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:23:49,437 INFO L87 Difference]: Start difference. First operand 2912 states and 3772 transitions. Second operand 10 states. [2018-11-22 21:23:51,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:51,528 INFO L93 Difference]: Finished difference Result 5822 states and 7577 transitions. [2018-11-22 21:23:51,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-22 21:23:51,529 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2018-11-22 21:23:51,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:51,536 INFO L225 Difference]: With dead ends: 5822 [2018-11-22 21:23:51,536 INFO L226 Difference]: Without dead ends: 3051 [2018-11-22 21:23:51,541 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-11-22 21:23:51,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2018-11-22 21:23:51,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 3049. [2018-11-22 21:23:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2018-11-22 21:23:51,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 3919 transitions. [2018-11-22 21:23:51,588 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 3919 transitions. Word has length 184 [2018-11-22 21:23:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:51,588 INFO L480 AbstractCegarLoop]: Abstraction has 3049 states and 3919 transitions. [2018-11-22 21:23:51,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 21:23:51,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 3919 transitions. [2018-11-22 21:23:51,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-11-22 21:23:51,594 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:51,594 INFO L402 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:51,594 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:51,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:51,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1235116403, now seen corresponding path program 1 times [2018-11-22 21:23:51,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:51,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:51,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:51,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:51,596 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:51,704 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 95 proven. 15 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-11-22 21:23:51,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:23:51,705 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:23:51,705 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-11-22 21:23:51,705 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [685], [687], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-22 21:23:51,709 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:23:51,709 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:23:51,906 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-22 21:23:51,907 INFO L272 AbstractInterpreter]: Visited 135 different actions 264 times. Merged at 4 different actions 4 times. Never widened. Performed 3471 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3471 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-11-22 21:23:51,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:51,916 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-22 21:23:52,088 INFO L227 lantSequenceWeakener]: Weakened 214 states. On average, predicates are now at 81.94% of their original sizes. [2018-11-22 21:23:52,088 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-22 21:23:52,143 INFO L415 sIntCurrentIteration]: We unified 216 AI predicates to 216 [2018-11-22 21:23:52,143 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-22 21:23:52,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-22 21:23:52,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-22 21:23:52,144 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:52,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-22 21:23:52,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-22 21:23:52,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:23:52,145 INFO L87 Difference]: Start difference. First operand 3049 states and 3919 transitions. Second operand 10 states. [2018-11-22 21:23:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:54,573 INFO L93 Difference]: Finished difference Result 6097 states and 7869 transitions. [2018-11-22 21:23:54,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-22 21:23:54,573 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2018-11-22 21:23:54,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:54,584 INFO L225 Difference]: With dead ends: 6097 [2018-11-22 21:23:54,584 INFO L226 Difference]: Without dead ends: 3326 [2018-11-22 21:23:54,592 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-22 21:23:54,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3326 states. [2018-11-22 21:23:54,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3326 to 3324. [2018-11-22 21:23:54,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3324 states. [2018-11-22 21:23:54,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4216 transitions. [2018-11-22 21:23:54,657 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4216 transitions. Word has length 217 [2018-11-22 21:23:54,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:54,658 INFO L480 AbstractCegarLoop]: Abstraction has 3324 states and 4216 transitions. [2018-11-22 21:23:54,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-22 21:23:54,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4216 transitions. [2018-11-22 21:23:54,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-22 21:23:54,667 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:54,667 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:54,667 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:54,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:54,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1226892024, now seen corresponding path program 1 times [2018-11-22 21:23:54,668 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:54,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:54,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:54,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:54,668 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:54,784 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 51 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-11-22 21:23:54,785 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:23:54,785 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:23:54,785 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-11-22 21:23:54,785 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [97], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [685], [687], [757], [761], [770], [774], [776], [781], [782], [783], [785], [786] [2018-11-22 21:23:54,788 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-22 21:23:54,788 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-22 21:23:55,250 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-22 21:23:55,251 INFO L272 AbstractInterpreter]: Visited 137 different actions 549 times. Merged at 8 different actions 34 times. Widened at 1 different actions 1 times. Performed 7600 root evaluator evaluations with a maximum evaluation depth of 3. Performed 7600 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 8 fixpoints after 3 different actions. Largest state had 42 variables. [2018-11-22 21:23:55,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:55,257 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-22 21:23:55,257 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:23:55,257 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 21:23:55,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:55,263 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-22 21:23:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:55,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:23:55,432 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-22 21:23:55,432 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 21:23:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 97 proven. 44 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-22 21:23:55,549 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-22 21:23:55,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-22 21:23:55,550 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-22 21:23:55,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-22 21:23:55,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-22 21:23:55,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-11-22 21:23:55,551 INFO L87 Difference]: Start difference. First operand 3324 states and 4216 transitions. Second operand 11 states. [2018-11-22 21:23:56,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:56,460 INFO L93 Difference]: Finished difference Result 7233 states and 9338 transitions. [2018-11-22 21:23:56,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-22 21:23:56,461 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 225 [2018-11-22 21:23:56,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:56,473 INFO L225 Difference]: With dead ends: 7233 [2018-11-22 21:23:56,473 INFO L226 Difference]: Without dead ends: 4325 [2018-11-22 21:23:56,482 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 451 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2018-11-22 21:23:56,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4325 states. [2018-11-22 21:23:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 4182. [2018-11-22 21:23:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4182 states. [2018-11-22 21:23:56,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4182 states to 4182 states and 5241 transitions. [2018-11-22 21:23:56,560 INFO L78 Accepts]: Start accepts. Automaton has 4182 states and 5241 transitions. Word has length 225 [2018-11-22 21:23:56,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:56,561 INFO L480 AbstractCegarLoop]: Abstraction has 4182 states and 5241 transitions. [2018-11-22 21:23:56,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-22 21:23:56,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4182 states and 5241 transitions. [2018-11-22 21:23:56,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-11-22 21:23:56,573 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:56,573 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:56,573 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:56,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:56,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1714169166, now seen corresponding path program 2 times [2018-11-22 21:23:56,574 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:56,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:56,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:56,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:56,574 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 53 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-11-22 21:23:56,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:23:56,692 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-22 21:23:56,692 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-22 21:23:56,693 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-22 21:23:56,693 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-22 21:23:56,693 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-22 21:23:56,703 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-22 21:23:56,703 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-22 21:23:56,766 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-22 21:23:56,767 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-22 21:23:56,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:23:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-22 21:23:56,915 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-22 21:23:57,027 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-11-22 21:23:57,052 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-22 21:23:57,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-11-22 21:23:57,053 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:57,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 21:23:57,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:23:57,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:23:57,054 INFO L87 Difference]: Start difference. First operand 4182 states and 5241 transitions. Second operand 3 states. [2018-11-22 21:23:57,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:57,428 INFO L93 Difference]: Finished difference Result 9717 states and 12477 transitions. [2018-11-22 21:23:57,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:23:57,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2018-11-22 21:23:57,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:57,429 INFO L225 Difference]: With dead ends: 9717 [2018-11-22 21:23:57,429 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:23:57,450 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 449 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-22 21:23:57,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:23:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:23:57,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:23:57,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:23:57,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 225 [2018-11-22 21:23:57,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:57,451 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:23:57,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 21:23:57,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:23:57,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:23:57,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 21:23:57,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-22 21:23:58,221 WARN L180 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 94 [2018-11-22 21:23:58,350 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:23:58,350 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~a20~0)| ~a20~0) (= |old(~a16~0)| ~a16~0)) [2018-11-22 21:23:58,350 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:23:58,350 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-11-22 21:23:58,350 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-11-22 21:23:58,350 INFO L448 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,351 INFO L448 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-11-22 21:23:58,352 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-11-22 21:23:58,353 INFO L448 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-11-22 21:23:58,354 INFO L448 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-11-22 21:23:58,355 INFO L448 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 548) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-11-22 21:23:58,356 INFO L448 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-11-22 21:23:58,357 INFO L448 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-11-22 21:23:58,358 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L444 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse18 (= |old(~a20~0)| ~a20~0)) (.cse19 (= |old(~a16~0)| ~a16~0))) (let ((.cse5 (not (= ~a8~0 13))) (.cse4 (= 13 |old(~a8~0)|)) (.cse15 (not (= 1 |old(~a17~0)|))) (.cse13 (not (= 5 |old(~a16~0)|))) (.cse8 (= ~a17~0 1)) (.cse16 (= 1 |old(~a7~0)|)) (.cse17 (not (= ~a7~0 1))) (.cse3 (= 15 ~a8~0)) (.cse9 (= ~a21~0 1)) (.cse10 (= ~a7~0 0)) (.cse14 (= |calculate_output_#in~input| 0)) (.cse6 (= 6 |old(~a16~0)|)) (.cse11 (not (= 0 |old(~a7~0)|))) (.cse12 (not (= 1 |old(~a21~0)|))) (.cse0 (not (= 1 |old(~a20~0)|))) (.cse1 (not (= 15 |old(~a8~0)|))) (.cse20 (< 4 |old(~a16~0)|)) (.cse21 (and .cse18 .cse19)) (.cse2 (not (= 8 ~a12~0))) (.cse7 (< 0 |old(~a20~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse2 .cse5) (or .cse6 .cse1 .cse2 .cse3 .cse7) (or (and .cse8 .cse9 .cse10) (or .cse11 .cse12 .cse1 (not (= 0 |old(~a20~0)|)) .cse13 .cse2) .cse14 .cse15) (or .cse16 .cse0 .cse2 .cse17) (or .cse12 .cse0 (not (= 4 |old(~a16~0)|)) (and (= 1 ~a7~0) (= 13 ~a8~0) (= 1 ~a21~0) (= 1 ~a17~0)) .cse2 (not .cse16) (not .cse4) .cse15) (or .cse6 (and .cse18 .cse19 .cse5) .cse4 .cse2 .cse7) (or .cse6 .cse16 .cse4 .cse2 .cse17 .cse7) (or .cse6 .cse11 .cse12 .cse0 .cse1 (and .cse9 .cse10) (= 0 |old(~a16~0)|) .cse2 .cse14) (or .cse16 .cse20 .cse17 .cse2 .cse7) (or .cse0 .cse21 .cse2) (or .cse11 .cse12 .cse2 .cse14 .cse15 .cse0 .cse1 .cse13 .cse8) (or .cse16 .cse1 .cse2 (and .cse17 .cse18 .cse19 .cse3) .cse7) (or (and .cse9 (= ~a17~0 0) .cse10) .cse14 (or (not .cse6) .cse11 .cse12 .cse0 .cse1 (not (= 0 |old(~a17~0)|)) .cse2)) (or .cse20 .cse21 .cse2 .cse7)))) [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-11-22 21:23:58,359 INFO L448 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,360 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,361 INFO L448 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-11-22 21:23:58,362 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:23:58,363 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a7~0 0) (= ~a17~0 1) (= ~a12~0 8) (= ~a21~0 1) (= ~a20~0 1) (= 15 ~a8~0) (= ~a16~0 5)) [2018-11-22 21:23:58,363 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 21:23:58,363 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:23:58,363 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a17~0 1) (= ~a21~0 1) (= 15 ~a8~0) (= ~a7~0 0) (= ~a20~0 1) (= ~a16~0 5)) (not (= 5 |old(~a16~0)|)) (not (= 8 ~a12~0)) (not (= 1 |old(~a17~0)|))) [2018-11-22 21:23:58,363 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-11-22 21:23:58,363 INFO L444 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0))) (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (and (not (= ~a7~0 1)) (= 15 ~a8~0) .cse0) (and (not (= ~a16~0 6)) .cse0 (not (= ~a8~0 13))) (and .cse0 (<= ~a16~0 4)) (not (= 8 ~a12~0)) (= |old(~a20~0)| ~a20~0) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)))) [2018-11-22 21:23:58,363 INFO L448 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-11-22 21:23:58,363 INFO L448 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-11-22 21:23:58,363 INFO L444 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (<= ~a20~0 0))) (or (not (= 0 |old(~a7~0)|)) (not (= 1 |old(~a21~0)|)) (and (not (= ~a7~0 1)) (= 15 ~a8~0) .cse0) (and (not (= ~a16~0 6)) .cse0 (not (= ~a8~0 13))) (and .cse0 (<= ~a16~0 4)) (not (= 8 ~a12~0)) (= |old(~a20~0)| ~a20~0) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (not (= 5 |old(~a16~0)|)))) [2018-11-22 21:23:58,364 INFO L448 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2018-11-22 21:23:58,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:23:58 BoogieIcfgContainer [2018-11-22 21:23:58,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:23:58,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:23:58,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:23:58,382 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:23:58,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:41" (3/4) ... [2018-11-22 21:23:58,385 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:23:58,390 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 21:23:58,390 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure calculate_output [2018-11-22 21:23:58,390 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 21:23:58,398 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-22 21:23:58,399 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 21:23:58,423 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(0 == \old(a7)) || !(1 == \old(a21))) || ((!(a7 == 1) && 15 == a8) && a20 <= 0)) || ((!(a16 == 6) && a20 <= 0) && !(a8 == 13))) || (a20 <= 0 && a16 <= 4)) || !(8 == a12)) || \old(a20) == a20) || !(1 == \old(a17))) || !(1 == \old(a20))) || !(15 == \old(a8))) || !(5 == \old(a16)) [2018-11-22 21:23:58,495 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b70e76f4-a040-47d6-a549-2c377d73d256/bin-2019/utaipan/witness.graphml [2018-11-22 21:23:58,495 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:23:58,497 INFO L168 Benchmark]: Toolchain (without parser) took 18811.03 ms. Allocated memory was 1.0 GB in the beginning and 2.0 GB in the end (delta: 949.5 MB). Free memory was 957.6 MB in the beginning and 1.3 GB in the end (delta: -319.5 MB). Peak memory consumption was 630.0 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:58,497 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:23:58,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.86 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 920.0 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:58,498 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 920.0 MB in the beginning and 1.1 GB in the end (delta: -227.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:58,498 INFO L168 Benchmark]: Boogie Preprocessor took 50.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:58,498 INFO L168 Benchmark]: RCFGBuilder took 1002.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:58,498 INFO L168 Benchmark]: TraceAbstraction took 17205.39 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 794.3 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -258.4 MB). Peak memory consumption was 535.9 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:58,499 INFO L168 Benchmark]: Witness Printer took 113.22 ms. Allocated memory is still 2.0 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:58,500 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.86 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 920.0 MB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 920.0 MB in the beginning and 1.1 GB in the end (delta: -227.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1002.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17205.39 ms. Allocated memory was 1.2 GB in the beginning and 2.0 GB in the end (delta: 794.3 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -258.4 MB). Peak memory consumption was 535.9 MB. Max. memory is 11.5 GB. * Witness Printer took 113.22 ms. Allocated memory is still 2.0 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 548]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((!(0 == \old(a7)) || !(1 == \old(a21))) || ((!(a7 == 1) && 15 == a8) && a20 <= 0)) || ((!(a16 == 6) && a20 <= 0) && !(a8 == 13))) || (a20 <= 0 && a16 <= 4)) || !(8 == a12)) || \old(a20) == a20) || !(1 == \old(a17))) || !(1 == \old(a20))) || !(15 == \old(a8))) || !(5 == \old(a16)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. SAFE Result, 17.1s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 11.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 1367 SDtfs, 5107 SDslu, 1180 SDs, 0 SdLazy, 6927 SolverSat, 1139 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1553 GetRequests, 1467 SyntacticMatches, 10 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4182occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9975028325019722 AbsIntWeakeningRatio, 0.2038327526132404 AbsIntAvgWeakeningVarsNumRemoved, 29.78745644599303 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 196 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 170 PreInvPairs, 254 NumberOfFragments, 604 HoareAnnotationTreeSize, 170 FomulaSimplifications, 3148 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2173 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2198 NumberOfCodeBlocks, 2134 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2634 ConstructedInterpolants, 0 QuantifiedInterpolants, 1407851 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1003 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 1167/1349 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...