./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/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 17da727b994aaa75d870178ca09f053b93a70f18 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:01:23,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:01:23,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:01:23,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:01:23,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:01:23,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:01:23,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:01:23,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:01:23,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:01:23,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:01:23,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:01:23,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:01:23,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:01:23,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:01:23,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:01:23,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:01:23,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:01:23,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:01:23,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:01:23,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:01:23,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:01:23,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:01:23,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:01:23,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:01:23,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:01:23,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:01:23,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:01:23,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:01:23,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:01:23,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:01:23,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:01:23,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:01:23,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:01:23,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:01:23,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:01:23,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:01:23,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:01:23,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:01:23,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:01:23,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:01:23,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:01:23,256 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:01:23,266 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:01:23,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:01:23,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:01:23,267 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:01:23,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:01:23,267 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:01:23,267 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:01:23,268 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:01:23,268 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:01:23,268 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:01:23,268 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:01:23,268 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:01:23,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:01:23,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:01:23,268 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:01:23,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:01:23,269 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:01:23,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:01:23,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:01:23,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:01:23,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:01:23,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:01:23,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:01:23,270 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:01:23,270 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:01:23,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:01:23,270 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:01:23,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:01:23,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:01:23,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:01:23,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:01:23,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:01:23,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:01:23,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:01:23,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:01:23,272 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:01:23,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:01:23,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:01:23,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:01:23,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:01:23,272 INFO L138 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/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/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 -> 17da727b994aaa75d870178ca09f053b93a70f18 [2019-12-07 20:01:23,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:01:23,388 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:01:23,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:01:23,392 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:01:23,392 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:01:23,393 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/../../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2019-12-07 20:01:23,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/data/df1d2580b/caf63a9c25a84fc09d882dadccacb020/FLAG428113bd2 [2019-12-07 20:01:23,760 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:01:23,761 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2019-12-07 20:01:23,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/data/df1d2580b/caf63a9c25a84fc09d882dadccacb020/FLAG428113bd2 [2019-12-07 20:01:23,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/data/df1d2580b/caf63a9c25a84fc09d882dadccacb020 [2019-12-07 20:01:23,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:01:23,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:01:23,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:01:23,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:01:23,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:01:23,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:23,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78af6170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23, skipping insertion in model container [2019-12-07 20:01:23,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:23,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:01:23,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:01:23,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:01:23,942 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:01:23,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:01:23,966 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:01:23,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23 WrapperNode [2019-12-07 20:01:23,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:01:23,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:01:23,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:01:23,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:01:23,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:23,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:23,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:01:23,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:01:23,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:01:23,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:01:23,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:23,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:23,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:23,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:24,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:24,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:24,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... [2019-12-07 20:01:24,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:01:24,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:01:24,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:01:24,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:01:24,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/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 [2019-12-07 20:01:24,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:01:24,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:01:24,290 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:01:24,290 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 20:01:24,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:01:24 BoogieIcfgContainer [2019-12-07 20:01:24,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:01:24,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:01:24,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:01:24,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:01:24,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:01:23" (1/3) ... [2019-12-07 20:01:24,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29888f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:01:24, skipping insertion in model container [2019-12-07 20:01:24,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:01:23" (2/3) ... [2019-12-07 20:01:24,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29888f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:01:24, skipping insertion in model container [2019-12-07 20:01:24,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:01:24" (3/3) ... [2019-12-07 20:01:24,295 INFO L109 eAbstractionObserver]: Analyzing ICFG gj2007.c.i.p+lhb-reducer.c [2019-12-07 20:01:24,302 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:01:24,306 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:01:24,313 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:01:24,327 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:01:24,327 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:01:24,327 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:01:24,327 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:01:24,327 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:01:24,327 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:01:24,327 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:01:24,327 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:01:24,336 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-12-07 20:01:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 20:01:24,339 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:01:24,340 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:01:24,340 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:01:24,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:01:24,344 INFO L82 PathProgramCache]: Analyzing trace with hash 930148037, now seen corresponding path program 1 times [2019-12-07 20:01:24,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:01:24,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083862668] [2019-12-07 20:01:24,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:01:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:01:24,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:24,535 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083862668] [2019-12-07 20:01:24,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:01:24,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-12-07 20:01:24,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776635556] [2019-12-07 20:01:24,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 20:01:24,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:01:24,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 20:01:24,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 20:01:24,550 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 12 states. [2019-12-07 20:01:24,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:01:24,620 INFO L93 Difference]: Finished difference Result 22 states and 33 transitions. [2019-12-07 20:01:24,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 20:01:24,621 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2019-12-07 20:01:24,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:01:24,627 INFO L225 Difference]: With dead ends: 22 [2019-12-07 20:01:24,627 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 20:01:24,629 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2019-12-07 20:01:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 20:01:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 20:01:24,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 20:01:24,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-12-07 20:01:24,655 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 13 [2019-12-07 20:01:24,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:01:24,655 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-12-07 20:01:24,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 20:01:24,656 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-12-07 20:01:24,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 20:01:24,656 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:01:24,656 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:01:24,657 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:01:24,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:01:24,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1228635627, now seen corresponding path program 1 times [2019-12-07 20:01:24,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:01:24,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388833908] [2019-12-07 20:01:24,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:01:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:01:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:24,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388833908] [2019-12-07 20:01:24,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480010094] [2019-12-07 20:01:24,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:01:24,781 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 20:01:24,785 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:01:24,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,823 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:24,900 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:01:24,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:24,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:25,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:25,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:25,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:25,075 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:25,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:01:25,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:25,119 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [909039640] [2019-12-07 20:01:25,134 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-12-07 20:01:25,134 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:01:25,138 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:01:25,142 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:01:25,143 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:01:25,275 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:01:25,479 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:01:25,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:01:25,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2019-12-07 20:01:25,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336458912] [2019-12-07 20:01:25,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-12-07 20:01:25,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:01:25,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-12-07 20:01:25,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=795, Unknown=0, NotChecked=0, Total=1260 [2019-12-07 20:01:25,482 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 24 states. [2019-12-07 20:01:25,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:01:25,546 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2019-12-07 20:01:25,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-12-07 20:01:25,546 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 14 [2019-12-07 20:01:25,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:01:25,547 INFO L225 Difference]: With dead ends: 30 [2019-12-07 20:01:25,547 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 20:01:25,548 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 8 SyntacticMatches, 10 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=465, Invalid=795, Unknown=0, NotChecked=0, Total=1260 [2019-12-07 20:01:25,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 20:01:25,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 20:01:25,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 20:01:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2019-12-07 20:01:25,552 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2019-12-07 20:01:25,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:01:25,552 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2019-12-07 20:01:25,553 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-12-07 20:01:25,553 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2019-12-07 20:01:25,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 20:01:25,553 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:01:25,553 INFO L410 BasicCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:01:25,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:25,754 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:01:25,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:01:25,757 INFO L82 PathProgramCache]: Analyzing trace with hash -689240555, now seen corresponding path program 2 times [2019-12-07 20:01:25,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:01:25,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291346187] [2019-12-07 20:01:25,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:01:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:01:26,044 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:26,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291346187] [2019-12-07 20:01:26,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530768382] [2019-12-07 20:01:26,044 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:26,072 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-12-07 20:01:26,072 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 20:01:26,073 INFO L264 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 24 conjunts are in the unsatisfiable core [2019-12-07 20:01:26,074 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:01:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:26,311 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:01:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:26,990 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1133939778] [2019-12-07 20:01:26,991 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-12-07 20:01:26,991 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:01:26,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:01:26,992 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:01:26,992 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:01:27,048 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:01:27,235 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:01:27,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:01:27,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2019-12-07 20:01:27,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830993075] [2019-12-07 20:01:27,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-12-07 20:01:27,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:01:27,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-12-07 20:01:27,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1533, Invalid=2007, Unknown=0, NotChecked=0, Total=3540 [2019-12-07 20:01:27,239 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 48 states. [2019-12-07 20:01:27,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:01:27,376 INFO L93 Difference]: Finished difference Result 54 states and 77 transitions. [2019-12-07 20:01:27,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2019-12-07 20:01:27,376 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 26 [2019-12-07 20:01:27,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:01:27,377 INFO L225 Difference]: With dead ends: 54 [2019-12-07 20:01:27,378 INFO L226 Difference]: Without dead ends: 51 [2019-12-07 20:01:27,379 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 20 SyntacticMatches, 22 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1533, Invalid=2007, Unknown=0, NotChecked=0, Total=3540 [2019-12-07 20:01:27,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-12-07 20:01:27,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-12-07 20:01:27,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-12-07 20:01:27,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2019-12-07 20:01:27,386 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 26 [2019-12-07 20:01:27,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:01:27,386 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2019-12-07 20:01:27,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 48 states. [2019-12-07 20:01:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2019-12-07 20:01:27,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-07 20:01:27,387 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:01:27,388 INFO L410 BasicCegarLoop]: trace histogram [37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:01:27,588 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:27,589 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:01:27,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:01:27,589 INFO L82 PathProgramCache]: Analyzing trace with hash -213512683, now seen corresponding path program 3 times [2019-12-07 20:01:27,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:01:27,590 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144102576] [2019-12-07 20:01:27,590 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:01:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:01:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:28,418 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144102576] [2019-12-07 20:01:28,418 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387973759] [2019-12-07 20:01:28,418 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:28,449 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-12-07 20:01:28,449 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 20:01:28,451 INFO L264 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 48 conjunts are in the unsatisfiable core [2019-12-07 20:01:28,453 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:01:29,289 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:29,290 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:01:31,702 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:31,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1112380463] [2019-12-07 20:01:31,704 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-12-07 20:01:31,704 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:01:31,704 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:01:31,704 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:01:31,705 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:01:31,751 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:01:31,974 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:01:31,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:01:31,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2019-12-07 20:01:31,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433453221] [2019-12-07 20:01:31,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 96 states [2019-12-07 20:01:31,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:01:31,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2019-12-07 20:01:31,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5397, Invalid=6159, Unknown=0, NotChecked=0, Total=11556 [2019-12-07 20:01:31,980 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 96 states. [2019-12-07 20:01:32,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:01:32,291 INFO L93 Difference]: Finished difference Result 102 states and 149 transitions. [2019-12-07 20:01:32,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2019-12-07 20:01:32,291 INFO L78 Accepts]: Start accepts. Automaton has 96 states. Word has length 50 [2019-12-07 20:01:32,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:01:32,292 INFO L225 Difference]: With dead ends: 102 [2019-12-07 20:01:32,292 INFO L226 Difference]: Without dead ends: 99 [2019-12-07 20:01:32,295 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 44 SyntacticMatches, 46 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3144 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5397, Invalid=6159, Unknown=0, NotChecked=0, Total=11556 [2019-12-07 20:01:32,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-12-07 20:01:32,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-12-07 20:01:32,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-12-07 20:01:32,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2019-12-07 20:01:32,303 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 50 [2019-12-07 20:01:32,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:01:32,303 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2019-12-07 20:01:32,303 INFO L463 AbstractCegarLoop]: Interpolant automaton has 96 states. [2019-12-07 20:01:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2019-12-07 20:01:32,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-12-07 20:01:32,306 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:01:32,306 INFO L410 BasicCegarLoop]: trace histogram [85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:01:32,506 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:32,507 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:01:32,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:01:32,507 INFO L82 PathProgramCache]: Analyzing trace with hash 406068757, now seen corresponding path program 4 times [2019-12-07 20:01:32,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:01:32,507 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204423519] [2019-12-07 20:01:32,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:01:32,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:01:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:36,015 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204423519] [2019-12-07 20:01:36,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389971183] [2019-12-07 20:01:36,016 INFO L92 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:01:36,067 INFO L264 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 97 conjunts are in the unsatisfiable core [2019-12-07 20:01:36,072 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:01:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:41,229 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:01:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3655 backedges. 0 proven. 3655 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:49,162 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [905191292] [2019-12-07 20:01:49,163 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-12-07 20:01:49,163 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:01:49,163 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:01:49,163 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:01:49,164 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:01:49,208 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:01:50,226 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:01:50,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:01:50,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2019-12-07 20:01:50,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311881445] [2019-12-07 20:01:50,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 192 states [2019-12-07 20:01:50,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:01:50,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2019-12-07 20:01:50,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10751, Invalid=30661, Unknown=0, NotChecked=0, Total=41412 [2019-12-07 20:01:50,235 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand 192 states. [2019-12-07 20:01:52,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:01:52,360 INFO L93 Difference]: Finished difference Result 108 states and 113 transitions. [2019-12-07 20:01:52,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2019-12-07 20:01:52,361 INFO L78 Accepts]: Start accepts. Automaton has 192 states. Word has length 98 [2019-12-07 20:01:52,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:01:52,362 INFO L225 Difference]: With dead ends: 108 [2019-12-07 20:01:52,362 INFO L226 Difference]: Without dead ends: 105 [2019-12-07 20:01:52,363 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 91 SyntacticMatches, 95 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7426 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=10751, Invalid=30661, Unknown=0, NotChecked=0, Total=41412 [2019-12-07 20:01:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-12-07 20:01:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-12-07 20:01:52,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-12-07 20:01:52,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2019-12-07 20:01:52,370 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 98 [2019-12-07 20:01:52,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:01:52,371 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2019-12-07 20:01:52,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 192 states. [2019-12-07 20:01:52,371 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2019-12-07 20:01:52,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-12-07 20:01:52,372 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:01:52,372 INFO L410 BasicCegarLoop]: trace histogram [91, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:01:52,573 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:52,573 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:01:52,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:01:52,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1072111637, now seen corresponding path program 5 times [2019-12-07 20:01:52,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:01:52,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089725246] [2019-12-07 20:01:52,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:01:52,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:01:58,793 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:01:58,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089725246] [2019-12-07 20:01:58,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492732136] [2019-12-07 20:01:58,793 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:01:58,931 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2019-12-07 20:01:58,932 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 20:01:58,935 WARN L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 111 conjunts are in the unsatisfiable core [2019-12-07 20:01:58,940 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:02:14,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:02:14,842 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:02:26,419 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2019-12-07 20:02:27,372 WARN L192 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2019-12-07 20:02:28,475 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-12-07 20:02:29,317 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-12-07 20:02:30,627 WARN L192 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2019-12-07 20:02:31,205 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-12-07 20:02:31,697 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-12-07 20:02:32,936 WARN L192 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-12-07 20:02:33,754 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-12-07 20:02:34,674 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-12-07 20:02:35,375 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-12-07 20:02:36,120 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-12-07 20:02:36,972 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2019-12-07 20:02:37,797 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2019-12-07 20:02:38,658 WARN L192 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2019-12-07 20:02:40,181 WARN L192 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2019-12-07 20:02:41,086 WARN L192 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 109 [2019-12-07 20:02:42,997 WARN L192 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 112 [2019-12-07 20:02:44,053 WARN L192 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 119 [2019-12-07 20:02:45,414 WARN L192 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 122 [2019-12-07 20:02:46,780 WARN L192 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 127 [2019-12-07 20:02:48,029 WARN L192 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 132 [2019-12-07 20:02:49,748 WARN L192 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 137 [2019-12-07 20:02:51,082 WARN L192 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 142 [2019-12-07 20:02:53,296 WARN L192 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 147 [2019-12-07 20:02:54,791 WARN L192 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 152 [2019-12-07 20:02:56,132 WARN L192 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 159 [2019-12-07 20:02:57,635 WARN L192 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 166 [2019-12-07 20:02:59,585 WARN L192 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 167 [2019-12-07 20:03:01,140 WARN L192 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 174 [2019-12-07 20:03:03,059 WARN L192 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 177 [2019-12-07 20:03:04,653 WARN L192 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 184 [2019-12-07 20:03:06,721 WARN L192 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 187 [2019-12-07 20:03:08,297 WARN L192 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 194 [2019-12-07 20:03:09,921 WARN L192 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 199 [2019-12-07 20:03:11,758 WARN L192 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 206 [2019-12-07 20:03:13,603 WARN L192 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 213 [2019-12-07 20:03:15,466 WARN L192 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 220 [2019-12-07 20:03:17,539 WARN L192 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 227 [2019-12-07 20:03:19,662 WARN L192 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 234 [2019-12-07 20:03:21,785 WARN L192 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 231 [2019-12-07 20:03:23,830 WARN L192 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 238 [2019-12-07 20:03:26,080 WARN L192 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 241 [2019-12-07 20:03:28,215 WARN L192 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 248 [2019-12-07 20:03:30,410 WARN L192 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 253 [2019-12-07 20:03:32,639 WARN L192 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 312 DAG size of output: 258 [2019-12-07 20:03:34,864 WARN L192 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 265 [2019-12-07 20:03:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4186 backedges. 0 proven. 4186 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:03:35,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [452739295] [2019-12-07 20:03:35,122 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-12-07 20:03:35,122 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 20:03:35,123 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 20:03:35,123 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 20:03:35,123 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 20:03:35,159 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 20:03:37,662 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:03:37,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 20:03:37,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [103, 103, 103] total 256 [2019-12-07 20:03:37,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553168103] [2019-12-07 20:03:37,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 257 states [2019-12-07 20:03:37,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:03:37,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2019-12-07 20:03:37,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6674, Invalid=65418, Unknown=0, NotChecked=0, Total=72092 [2019-12-07 20:03:37,666 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand 257 states. [2019-12-07 20:03:52,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:03:52,562 INFO L93 Difference]: Finished difference Result 107 states and 108 transitions. [2019-12-07 20:03:52,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2019-12-07 20:03:52,562 INFO L78 Accepts]: Start accepts. Automaton has 257 states. Word has length 104 [2019-12-07 20:03:52,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:03:52,562 INFO L225 Difference]: With dead ends: 107 [2019-12-07 20:03:52,562 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 20:03:52,564 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 96 SyntacticMatches, 50 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14502 ImplicationChecksByTransitivity, 104.2s TimeCoverageRelationStatistics Valid=6681, Invalid=65949, Unknown=0, NotChecked=0, Total=72630 [2019-12-07 20:03:52,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 20:03:52,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 20:03:52,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 20:03:52,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 20:03:52,565 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2019-12-07 20:03:52,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:03:52,565 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 20:03:52,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 257 states. [2019-12-07 20:03:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 20:03:52,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 20:03:52,765 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:03:52,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 20:03:54,689 WARN L192 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 519 DAG size of output: 474 [2019-12-07 20:03:54,714 INFO L242 CegarLoopResult]: At program point L118(lines 56 119) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__x~0 8) (<= 8 ULTIMATE.start_main_~main__x~0) (<= 50 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 50)) [2019-12-07 20:03:54,714 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 20:03:54,715 INFO L246 CegarLoopResult]: For program point L12(lines 12 208) no Hoare annotation was computed. [2019-12-07 20:03:54,715 INFO L242 CegarLoopResult]: At program point L202(lines 14 203) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 1) (<= 50 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 50)) [2019-12-07 20:03:54,715 INFO L242 CegarLoopResult]: At program point L178(lines 26 179) the Hoare annotation is: (and (<= 3 ULTIMATE.start_main_~main__x~0) (<= 50 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 3) (<= ULTIMATE.start_main_~main__y~0 50)) [2019-12-07 20:03:54,715 INFO L242 CegarLoopResult]: At program point L154(lines 38 155) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__x~0 5) (<= 50 ULTIMATE.start_main_~main__y~0) (<= 5 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 50)) [2019-12-07 20:03:54,715 INFO L242 CegarLoopResult]: At program point L130(lines 50 131) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__x~0 7) (<= 50 ULTIMATE.start_main_~main__y~0) (<= 7 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 50)) [2019-12-07 20:03:54,715 INFO L246 CegarLoopResult]: For program point L89(lines 89 98) no Hoare annotation was computed. [2019-12-07 20:03:54,717 INFO L242 CegarLoopResult]: At program point L106(lines 62 107) the Hoare annotation is: (let ((.cse0 (<= 50 ULTIMATE.start_main_~main__y~0)) (.cse1 (<= ULTIMATE.start_main_~main__y~0 50))) (or (and (<= 71 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 71) (<= 71 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 72)) (and (<= 59 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 59) (< ULTIMATE.start_main_~main__x~0 60) (<= 59 ULTIMATE.start_main_~main__x~0)) (and (<= 49 ULTIMATE.start_main_~main__x~0) .cse0 (<= ULTIMATE.start_main_~main__x~0 49) .cse1) (and (<= 77 ULTIMATE.start_main_~main__y~0) (<= 77 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 77) (< ULTIMATE.start_main_~main__x~0 78)) (and (<= ULTIMATE.start_main_~main__x~0 33) .cse0 (<= 33 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= 100 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 100) (< ULTIMATE.start_main_~main__x~0 101) (<= 100 ULTIMATE.start_main_~main__y~0)) (and .cse0 (<= ULTIMATE.start_main_~main__x~0 34) .cse1 (<= 34 ULTIMATE.start_main_~main__x~0)) (and (<= 9 ULTIMATE.start_main_~main__x~0) .cse0 (<= ULTIMATE.start_main_~main__x~0 9) .cse1) (and (<= 79 ULTIMATE.start_main_~main__x~0) (<= 79 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 79) (<= ULTIMATE.start_main_~main__y~0 79)) (and (<= 54 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 54) (<= 54 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 54)) (and (<= 29 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 29) .cse0 .cse1) (and (<= 17 ULTIMATE.start_main_~main__x~0) .cse0 .cse1 (<= ULTIMATE.start_main_~main__x~0 17)) (and (<= 11 ULTIMATE.start_main_~main__x~0) .cse0 (<= ULTIMATE.start_main_~main__x~0 11) .cse1) (and (<= ULTIMATE.start_main_~main__y~0 86) (<= 86 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 86) (<= 86 ULTIMATE.start_main_~main__y~0)) (and (<= ULTIMATE.start_main_~main__y~0 65) (<= 65 ULTIMATE.start_main_~main__x~0) (<= 65 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 66)) (and (<= ULTIMATE.start_main_~main__x~0 23) .cse0 (<= 23 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= ULTIMATE.start_main_~main__x~0 27) (<= 27 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= 16 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 16) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__x~0 45) .cse0 (<= 45 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= 80 ULTIMATE.start_main_~main__y~0) (<= 80 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 80) (<= ULTIMATE.start_main_~main__y~0 80)) (and (<= 56 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 57) (<= 56 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 56)) (and (<= 51 ULTIMATE.start_main_~main__x~0) (<= 51 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 51) (<= ULTIMATE.start_main_~main__y~0 51)) (and (<= 91 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 91) (<= ULTIMATE.start_main_~main__y~0 91) (<= 91 ULTIMATE.start_main_~main__y~0)) (and (<= 87 ULTIMATE.start_main_~main__y~0) (<= 87 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 87) (< ULTIMATE.start_main_~main__x~0 88)) (and (<= 52 ULTIMATE.start_main_~main__y~0) (<= 52 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 52) (<= ULTIMATE.start_main_~main__x~0 52)) (and (<= 82 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 82) (<= 82 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 82)) (and (<= 72 ULTIMATE.start_main_~main__y~0) (<= 72 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 72) (<= ULTIMATE.start_main_~main__y~0 72)) (and (<= ULTIMATE.start_main_~main__x~0 20) (<= 20 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__y~0 84) (<= 84 ULTIMATE.start_main_~main__y~0) (<= 84 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 84)) (and .cse0 (<= ULTIMATE.start_main_~main__x~0 13) .cse1 (<= 13 ULTIMATE.start_main_~main__x~0)) (and (<= 83 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 83) (<= 83 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 83)) (and (<= 89 ULTIMATE.start_main_~main__x~0) (<= 89 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 89) (<= ULTIMATE.start_main_~main__x~0 89)) (and (<= 96 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 96) (< ULTIMATE.start_main_~main__x~0 97) (<= 96 ULTIMATE.start_main_~main__x~0)) (and (<= 46 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 46) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__y~0 66) (<= 66 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 66) (<= 66 ULTIMATE.start_main_~main__x~0)) (and (<= ULTIMATE.start_main_~main__x~0 32) (<= 32 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= 60 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 61) (<= 60 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 60)) (and (<= ULTIMATE.start_main_~main__y~0 63) (<= 63 ULTIMATE.start_main_~main__x~0) (< ULTIMATE.start_main_~main__x~0 64) (<= 63 ULTIMATE.start_main_~main__y~0)) (and (<= 18 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 18) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__x~0 21) (<= 21 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__y~0 98) (<= 98 ULTIMATE.start_main_~main__x~0) (<= 98 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 99)) (and (< ULTIMATE.start_main_~main__x~0 71) (<= ULTIMATE.start_main_~main__y~0 70) (<= 70 ULTIMATE.start_main_~main__y~0) (<= 70 ULTIMATE.start_main_~main__x~0)) (and (<= 99 ULTIMATE.start_main_~main__x~0) (< ULTIMATE.start_main_~main__x~0 100) (<= 99 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 99)) (and (<= 81 ULTIMATE.start_main_~main__x~0) (<= 81 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 81) (< ULTIMATE.start_main_~main__x~0 82)) (and (<= 67 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 68) (<= 67 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 67)) (and (<= ULTIMATE.start_main_~main__x~0 15) (<= 15 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__y~0 69) (<= 69 ULTIMATE.start_main_~main__x~0) (<= 69 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 69)) (and (<= ULTIMATE.start_main_~main__x~0 36) (<= 36 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__x~0 47) .cse0 (<= 47 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= 88 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 88) (<= ULTIMATE.start_main_~main__y~0 88) (<= 88 ULTIMATE.start_main_~main__y~0)) (and (<= 62 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 62) (<= 62 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 62)) (and .cse0 (<= 22 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 22) .cse1) (and (<= ULTIMATE.start_main_~main__x~0 28) .cse0 (<= 28 ULTIMATE.start_main_~main__x~0) .cse1) (and .cse0 (<= ULTIMATE.start_main_~main__x~0 42) (<= 42 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= 92 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 92) (<= 92 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 92)) (and .cse0 (< ULTIMATE.start_main_~main__x~0 51) (<= 50 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= ULTIMATE.start_main_~main__x~0 55) (<= 55 ULTIMATE.start_main_~main__x~0) (<= 55 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 55)) (and (<= ULTIMATE.start_main_~main__x~0 44) .cse0 (<= 44 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= ULTIMATE.start_main_~main__y~0 73) (<= 73 ULTIMATE.start_main_~main__x~0) (< ULTIMATE.start_main_~main__x~0 74) (<= 73 ULTIMATE.start_main_~main__y~0)) (and (<= ULTIMATE.start_main_~main__x~0 10) .cse0 .cse1 (<= 10 ULTIMATE.start_main_~main__x~0)) (and (<= 48 ULTIMATE.start_main_~main__x~0) .cse0 (<= ULTIMATE.start_main_~main__x~0 48) .cse1) (and (<= ULTIMATE.start_main_~main__y~0 85) (< ULTIMATE.start_main_~main__x~0 86) (<= 85 ULTIMATE.start_main_~main__y~0) (<= 85 ULTIMATE.start_main_~main__x~0)) (and (<= ULTIMATE.start_main_~main__x~0 30) (<= 30 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__x~0 35) (<= 35 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= 57 ULTIMATE.start_main_~main__x~0) (<= 57 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 57) (<= ULTIMATE.start_main_~main__y~0 57)) (and (<= 43 ULTIMATE.start_main_~main__x~0) .cse0 (<= ULTIMATE.start_main_~main__x~0 43) .cse1) (and (<= ULTIMATE.start_main_~main__x~0 39) (<= 39 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= 40 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 40) .cse0 .cse1) (and (<= ULTIMATE.start_main_~main__y~0 75) (<= 75 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 76) (<= 75 ULTIMATE.start_main_~main__x~0)) (and (<= ULTIMATE.start_main_~main__x~0 26) (<= 26 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= 64 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 64) (<= 64 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 64)) (and (<= 41 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 41) .cse0 .cse1) (and (<= 94 ULTIMATE.start_main_~main__x~0) (< ULTIMATE.start_main_~main__x~0 95) (<= 94 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 94)) (and .cse0 (<= ULTIMATE.start_main_~main__x~0 14) (<= 14 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= ULTIMATE.start_main_~main__x~0 38) (<= 38 ULTIMATE.start_main_~main__x~0) .cse0 .cse1) (and (<= 76 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 76) (<= 76 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 76)) (and (<= 90 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 91) (<= 90 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 90)) (and (<= 74 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 74) (<= 74 ULTIMATE.start_main_~main__x~0) (< ULTIMATE.start_main_~main__x~0 75)) (and (<= 53 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__y~0 53) (<= 53 ULTIMATE.start_main_~main__x~0) (< ULTIMATE.start_main_~main__x~0 54)) (and (<= 24 ULTIMATE.start_main_~main__x~0) .cse0 (<= ULTIMATE.start_main_~main__x~0 24) .cse1) (and (<= ULTIMATE.start_main_~main__x~0 31) .cse0 .cse1 (<= 31 ULTIMATE.start_main_~main__x~0)) (and (<= ULTIMATE.start_main_~main__y~0 93) (<= 93 ULTIMATE.start_main_~main__x~0) (<= 93 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 93)) (and (<= ULTIMATE.start_main_~main__y~0 58) (<= 58 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__x~0 58) (<= 58 ULTIMATE.start_main_~main__y~0)) (and (<= ULTIMATE.start_main_~main__y~0 97) (<= 97 ULTIMATE.start_main_~main__x~0) (< ULTIMATE.start_main_~main__x~0 98) (<= 97 ULTIMATE.start_main_~main__y~0)) (and (<= ULTIMATE.start_main_~main__x~0 19) .cse0 (<= 19 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= 95 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 95) (<= 95 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 96)) (and (<= 37 ULTIMATE.start_main_~main__x~0) .cse0 (<= ULTIMATE.start_main_~main__x~0 37) .cse1) (and (<= 68 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 69) (<= 68 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 68)) (and (<= 25 ULTIMATE.start_main_~main__x~0) .cse0 (<= ULTIMATE.start_main_~main__x~0 25) .cse1) (and (<= ULTIMATE.start_main_~main__x~0 12) .cse0 (<= 12 ULTIMATE.start_main_~main__x~0) .cse1) (and (<= 61 ULTIMATE.start_main_~main__x~0) (< ULTIMATE.start_main_~main__x~0 62) (<= ULTIMATE.start_main_~main__y~0 61) (<= 61 ULTIMATE.start_main_~main__y~0)) (and (<= 78 ULTIMATE.start_main_~main__x~0) (<= 78 ULTIMATE.start_main_~main__y~0) (< ULTIMATE.start_main_~main__x~0 79) (<= ULTIMATE.start_main_~main__y~0 78)))) [2019-12-07 20:03:54,717 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2019-12-07 20:03:54,717 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 20:03:54,717 INFO L242 CegarLoopResult]: At program point L190(lines 20 191) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__x~0 2) (<= 50 ULTIMATE.start_main_~main__y~0) (<= 2 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 50)) [2019-12-07 20:03:54,717 INFO L246 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2019-12-07 20:03:54,717 INFO L249 CegarLoopResult]: At program point L207(lines 8 209) the Hoare annotation is: true [2019-12-07 20:03:54,717 INFO L242 CegarLoopResult]: At program point L166(lines 32 167) the Hoare annotation is: (and (<= ULTIMATE.start_main_~main__x~0 4) (<= 50 ULTIMATE.start_main_~main__y~0) (<= 4 ULTIMATE.start_main_~main__x~0) (<= ULTIMATE.start_main_~main__y~0 50)) [2019-12-07 20:03:54,717 INFO L242 CegarLoopResult]: At program point L142(lines 44 143) the Hoare annotation is: (and (<= 6 ULTIMATE.start_main_~main__x~0) (<= 50 ULTIMATE.start_main_~main__y~0) (<= ULTIMATE.start_main_~main__x~0 6) (<= ULTIMATE.start_main_~main__y~0 50)) [2019-12-07 20:03:54,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:03:54 BoogieIcfgContainer [2019-12-07 20:03:54,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:03:54,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:03:54,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:03:54,751 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:03:54,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:01:24" (3/4) ... [2019-12-07 20:03:54,755 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 20:03:54,762 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 20:03:54,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 20:03:54,810 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_093ab728-0b58-455d-b638-db4d66b716ac/bin/utaipan/witness.graphml [2019-12-07 20:03:54,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:03:54,811 INFO L168 Benchmark]: Toolchain (without parser) took 151034.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 938.8 MB in the beginning and 983.9 MB in the end (delta: -45.1 MB). Peak memory consumption was 113.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:03:54,812 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:03:54,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:03:54,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:03:54,812 INFO L168 Benchmark]: Boogie Preprocessor took 13.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:03:54,812 INFO L168 Benchmark]: RCFGBuilder took 285.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:03:54,813 INFO L168 Benchmark]: TraceAbstraction took 150459.28 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 986.3 MB in the end (delta: 74.5 MB). Peak memory consumption was 360.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:03:54,813 INFO L168 Benchmark]: Witness Printer took 59.55 ms. Allocated memory is still 1.2 GB. Free memory was 986.3 MB in the beginning and 983.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:03:54,814 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 189.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 938.8 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 285.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 150459.28 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 986.3 MB in the end (delta: 74.5 MB). Peak memory consumption was 360.7 MB. Max. memory is 11.5 GB. * Witness Printer took 59.55 ms. Allocated memory is still 1.2 GB. Free memory was 986.3 MB in the beginning and 983.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: 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: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((1 <= main__x && main__x <= 1) && 50 <= main__y) && main__y <= 50 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((main__x <= 5 && 50 <= main__y) && 5 <= main__x) && main__y <= 50 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((71 <= main__x && main__y <= 71) && 71 <= main__y) && main__x < 72) || (((59 <= main__y && main__y <= 59) && main__x < 60) && 59 <= main__x)) || (((49 <= main__x && 50 <= main__y) && main__x <= 49) && main__y <= 50)) || (((77 <= main__y && 77 <= main__x) && main__y <= 77) && main__x < 78)) || (((main__x <= 33 && 50 <= main__y) && 33 <= main__x) && main__y <= 50)) || (((100 <= main__x && main__y <= 100) && main__x < 101) && 100 <= main__y)) || (((50 <= main__y && main__x <= 34) && main__y <= 50) && 34 <= main__x)) || (((9 <= main__x && 50 <= main__y) && main__x <= 9) && main__y <= 50)) || (((79 <= main__x && 79 <= main__y) && main__x <= 79) && main__y <= 79)) || (((54 <= main__y && main__y <= 54) && 54 <= main__x) && main__x <= 54)) || (((29 <= main__x && main__x <= 29) && 50 <= main__y) && main__y <= 50)) || (((17 <= main__x && 50 <= main__y) && main__y <= 50) && main__x <= 17)) || (((11 <= main__x && 50 <= main__y) && main__x <= 11) && main__y <= 50)) || (((main__y <= 86 && 86 <= main__x) && main__x <= 86) && 86 <= main__y)) || (((main__y <= 65 && 65 <= main__x) && 65 <= main__y) && main__x < 66)) || (((main__x <= 23 && 50 <= main__y) && 23 <= main__x) && main__y <= 50)) || (((main__x <= 27 && 27 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((16 <= main__x && main__x <= 16) && 50 <= main__y) && main__y <= 50)) || (((main__x <= 45 && 50 <= main__y) && 45 <= main__x) && main__y <= 50)) || (((80 <= main__y && 80 <= main__x) && main__x <= 80) && main__y <= 80)) || (((56 <= main__y && main__x < 57) && 56 <= main__x) && main__y <= 56)) || (((51 <= main__x && 51 <= main__y) && main__x <= 51) && main__y <= 51)) || (((91 <= main__x && main__x <= 91) && main__y <= 91) && 91 <= main__y)) || (((87 <= main__y && 87 <= main__x) && main__y <= 87) && main__x < 88)) || (((52 <= main__y && 52 <= main__x) && main__y <= 52) && main__x <= 52)) || (((82 <= main__y && main__y <= 82) && 82 <= main__x) && main__x <= 82)) || (((72 <= main__y && 72 <= main__x) && main__x <= 72) && main__y <= 72)) || (((main__x <= 20 && 20 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((main__y <= 84 && 84 <= main__y) && 84 <= main__x) && main__x <= 84)) || (((50 <= main__y && main__x <= 13) && main__y <= 50) && 13 <= main__x)) || (((83 <= main__x && main__y <= 83) && 83 <= main__y) && main__x <= 83)) || (((89 <= main__x && 89 <= main__y) && main__y <= 89) && main__x <= 89)) || (((96 <= main__y && main__y <= 96) && main__x < 97) && 96 <= main__x)) || (((46 <= main__x && main__x <= 46) && 50 <= main__y) && main__y <= 50)) || (((main__y <= 66 && 66 <= main__y) && main__x <= 66) && 66 <= main__x)) || (((main__x <= 32 && 32 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((60 <= main__y && main__x < 61) && 60 <= main__x) && main__y <= 60)) || (((main__y <= 63 && 63 <= main__x) && main__x < 64) && 63 <= main__y)) || (((18 <= main__x && main__x <= 18) && 50 <= main__y) && main__y <= 50)) || (((main__x <= 21 && 21 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((main__y <= 98 && 98 <= main__x) && 98 <= main__y) && main__x < 99)) || (((main__x < 71 && main__y <= 70) && 70 <= main__y) && 70 <= main__x)) || (((99 <= main__x && main__x < 100) && 99 <= main__y) && main__y <= 99)) || (((81 <= main__x && 81 <= main__y) && main__y <= 81) && main__x < 82)) || (((67 <= main__y && main__x < 68) && 67 <= main__x) && main__y <= 67)) || (((main__x <= 15 && 15 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((main__y <= 69 && 69 <= main__x) && 69 <= main__y) && main__x <= 69)) || (((main__x <= 36 && 36 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((main__x <= 47 && 50 <= main__y) && 47 <= main__x) && main__y <= 50)) || (((88 <= main__x && main__x <= 88) && main__y <= 88) && 88 <= main__y)) || (((62 <= main__x && main__x <= 62) && 62 <= main__y) && main__y <= 62)) || (((50 <= main__y && 22 <= main__x) && main__x <= 22) && main__y <= 50)) || (((main__x <= 28 && 50 <= main__y) && 28 <= main__x) && main__y <= 50)) || (((50 <= main__y && main__x <= 42) && 42 <= main__x) && main__y <= 50)) || (((92 <= main__y && main__y <= 92) && 92 <= main__x) && main__x <= 92)) || (((50 <= main__y && main__x < 51) && 50 <= main__x) && main__y <= 50)) || (((main__x <= 55 && 55 <= main__x) && 55 <= main__y) && main__y <= 55)) || (((main__x <= 44 && 50 <= main__y) && 44 <= main__x) && main__y <= 50)) || (((main__y <= 73 && 73 <= main__x) && main__x < 74) && 73 <= main__y)) || (((main__x <= 10 && 50 <= main__y) && main__y <= 50) && 10 <= main__x)) || (((48 <= main__x && 50 <= main__y) && main__x <= 48) && main__y <= 50)) || (((main__y <= 85 && main__x < 86) && 85 <= main__y) && 85 <= main__x)) || (((main__x <= 30 && 30 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((main__x <= 35 && 35 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((57 <= main__x && 57 <= main__y) && main__x <= 57) && main__y <= 57)) || (((43 <= main__x && 50 <= main__y) && main__x <= 43) && main__y <= 50)) || (((main__x <= 39 && 39 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((40 <= main__x && main__x <= 40) && 50 <= main__y) && main__y <= 50)) || (((main__y <= 75 && 75 <= main__y) && main__x < 76) && 75 <= main__x)) || (((main__x <= 26 && 26 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((64 <= main__x && main__x <= 64) && 64 <= main__y) && main__y <= 64)) || (((41 <= main__x && main__x <= 41) && 50 <= main__y) && main__y <= 50)) || (((94 <= main__x && main__x < 95) && 94 <= main__y) && main__y <= 94)) || (((50 <= main__y && main__x <= 14) && 14 <= main__x) && main__y <= 50)) || (((main__x <= 38 && 38 <= main__x) && 50 <= main__y) && main__y <= 50)) || (((76 <= main__x && main__x <= 76) && 76 <= main__y) && main__y <= 76)) || (((90 <= main__y && main__x < 91) && 90 <= main__x) && main__y <= 90)) || (((74 <= main__y && main__y <= 74) && 74 <= main__x) && main__x < 75)) || (((53 <= main__y && main__y <= 53) && 53 <= main__x) && main__x < 54)) || (((24 <= main__x && 50 <= main__y) && main__x <= 24) && main__y <= 50)) || (((main__x <= 31 && 50 <= main__y) && main__y <= 50) && 31 <= main__x)) || (((main__y <= 93 && 93 <= main__x) && 93 <= main__y) && main__x <= 93)) || (((main__y <= 58 && 58 <= main__x) && main__x <= 58) && 58 <= main__y)) || (((main__y <= 97 && 97 <= main__x) && main__x < 98) && 97 <= main__y)) || (((main__x <= 19 && 50 <= main__y) && 19 <= main__x) && main__y <= 50)) || (((95 <= main__x && main__y <= 95) && 95 <= main__y) && main__x < 96)) || (((37 <= main__x && 50 <= main__y) && main__x <= 37) && main__y <= 50)) || (((68 <= main__y && main__x < 69) && 68 <= main__x) && main__y <= 68)) || (((25 <= main__x && 50 <= main__y) && main__x <= 25) && main__y <= 50)) || (((main__x <= 12 && 50 <= main__y) && 12 <= main__x) && main__y <= 50)) || (((61 <= main__x && main__x < 62) && main__y <= 61) && 61 <= main__y)) || (((78 <= main__x && 78 <= main__y) && main__x < 79) && main__y <= 78) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((main__x <= 4 && 50 <= main__y) && 4 <= main__x) && main__y <= 50 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: ((main__x <= 8 && 8 <= main__x) && 50 <= main__y) && main__y <= 50 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((3 <= main__x && 50 <= main__y) && main__x <= 3) && main__y <= 50 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((main__x <= 7 && 50 <= main__y) && 7 <= main__x) && main__y <= 50 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((main__x <= 2 && 50 <= main__y) && 2 <= main__x) && main__y <= 50 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: ((6 <= main__x && 50 <= main__y) && main__x <= 6) && main__y <= 50 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 148.4s, OverallIterations: 6, TraceHistogramMax: 91, AutomataDifference: 17.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, HoareTripleCheckerStatistics: 23 SDtfs, 1 SDslu, 136 SDs, 0 SdLazy, 22751 SolverSat, 2439 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1161 GetRequests, 260 SyntacticMatches, 223 SemanticMatches, 678 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26866 ImplicationChecksByTransitivity, 127.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=105occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 103 NumberOfFragments, 1302 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 378 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 124.5s InterpolantComputationTime, 597 NumberOfCodeBlocks, 597 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 873 ConstructedInterpolants, 0 QuantifiedInterpolants, 1846849 SizeOfPredicates, 16 NumberOfNonLiveVariables, 634 ConjunctsInSsa, 292 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 0/25908 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...