./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/psyco/psyco_security.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/psyco/psyco_security.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4a7e0762948cbc310fcf63fb24dcbf7ee6356cb ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:28:25,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:28:25,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:28:26,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:28:26,086 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:28:26,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:28:26,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:28:26,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:28:26,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:28:26,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:28:26,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:28:26,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:28:26,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:28:26,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:28:26,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:28:26,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:28:26,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:28:26,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:28:26,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:28:26,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:28:26,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:28:26,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:28:26,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:28:26,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:28:26,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:28:26,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:28:26,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:28:26,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:28:26,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:28:26,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:28:26,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:28:26,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:28:26,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:28:26,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:28:26,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:28:26,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:28:26,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:28:26,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:28:26,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:28:26,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:28:26,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:28:26,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:28:26,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:28:26,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:28:26,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:28:26,224 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:28:26,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:28:26,225 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:28:26,225 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:28:26,225 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:28:26,226 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:28:26,226 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:28:26,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:28:26,227 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:28:26,227 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:28:26,227 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:28:26,228 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:28:26,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:28:26,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:28:26,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:28:26,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:28:26,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:28:26,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:28:26,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:28:26,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:28:26,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:28:26,231 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:28:26,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:28:26,232 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:28:26,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:28:26,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:28:26,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:28:26,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:28:26,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:28:26,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:28:26,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:28:26,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:28:26,235 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:28:26,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:28:26,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:28:26,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:28:26,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:28:26,237 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4a7e0762948cbc310fcf63fb24dcbf7ee6356cb [2020-11-30 02:28:26,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:28:26,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:28:26,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:28:26,619 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:28:26,620 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:28:26,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/../../sv-benchmarks/c/psyco/psyco_security.c [2020-11-30 02:28:26,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/data/0bacb0528/cbf4ceedd23d456d841fb3874aa150f5/FLAGd809e66a6 [2020-11-30 02:28:27,265 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:28:27,266 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/sv-benchmarks/c/psyco/psyco_security.c [2020-11-30 02:28:27,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/data/0bacb0528/cbf4ceedd23d456d841fb3874aa150f5/FLAGd809e66a6 [2020-11-30 02:28:27,589 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/data/0bacb0528/cbf4ceedd23d456d841fb3874aa150f5 [2020-11-30 02:28:27,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:28:27,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:28:27,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:28:27,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:28:27,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:28:27,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:27,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3838c0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27, skipping insertion in model container [2020-11-30 02:28:27,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:27,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:28:27,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:28:27,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:28:27,938 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:28:27,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:28:27,999 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:28:28,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27 WrapperNode [2020-11-30 02:28:28,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:28:28,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:28:28,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:28:28,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:28:28,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:28:28,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:28:28,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:28:28,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:28:28,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... [2020-11-30 02:28:28,171 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:28:28,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:28:28,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:28:28,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:28:28,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/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 [2020-11-30 02:28:28,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:28:28,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:28:28,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:28:28,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:28:29,033 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:28:29,034 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-30 02:28:29,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:28:29 BoogieIcfgContainer [2020-11-30 02:28:29,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:28:29,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:28:29,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:28:29,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:28:29,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:28:27" (1/3) ... [2020-11-30 02:28:29,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427aa428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:28:29, skipping insertion in model container [2020-11-30 02:28:29,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:28:27" (2/3) ... [2020-11-30 02:28:29,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427aa428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:28:29, skipping insertion in model container [2020-11-30 02:28:29,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:28:29" (3/3) ... [2020-11-30 02:28:29,048 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_security.c [2020-11-30 02:28:29,061 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:28:29,067 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:28:29,081 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:28:29,116 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:28:29,117 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:28:29,117 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:28:29,124 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:28:29,124 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:28:29,125 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:28:29,125 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:28:29,125 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:28:29,143 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2020-11-30 02:28:29,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:28:29,150 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:29,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:29,151 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:29,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:29,158 INFO L82 PathProgramCache]: Analyzing trace with hash -539522961, now seen corresponding path program 1 times [2020-11-30 02:28:29,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:29,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997512996] [2020-11-30 02:28:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:29,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:29,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997512996] [2020-11-30 02:28:29,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:29,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:28:29,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268115342] [2020-11-30 02:28:29,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 02:28:29,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:29,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 02:28:29,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:28:29,380 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2020-11-30 02:28:29,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:29,412 INFO L93 Difference]: Finished difference Result 151 states and 289 transitions. [2020-11-30 02:28:29,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 02:28:29,414 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-30 02:28:29,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:29,426 INFO L225 Difference]: With dead ends: 151 [2020-11-30 02:28:29,426 INFO L226 Difference]: Without dead ends: 73 [2020-11-30 02:28:29,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 02:28:29,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-30 02:28:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-30 02:28:29,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-30 02:28:29,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2020-11-30 02:28:29,481 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 8 [2020-11-30 02:28:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:29,481 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2020-11-30 02:28:29,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 02:28:29,482 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2020-11-30 02:28:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 02:28:29,483 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:29,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:29,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:28:29,484 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:29,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:29,485 INFO L82 PathProgramCache]: Analyzing trace with hash 987149289, now seen corresponding path program 1 times [2020-11-30 02:28:29,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:29,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752688112] [2020-11-30 02:28:29,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:29,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752688112] [2020-11-30 02:28:29,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:29,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:28:29,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715625308] [2020-11-30 02:28:29,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:28:29,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:29,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:28:29,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:29,554 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 3 states. [2020-11-30 02:28:29,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:29,696 INFO L93 Difference]: Finished difference Result 148 states and 219 transitions. [2020-11-30 02:28:29,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:28:29,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-30 02:28:29,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:29,700 INFO L225 Difference]: With dead ends: 148 [2020-11-30 02:28:29,701 INFO L226 Difference]: Without dead ends: 76 [2020-11-30 02:28:29,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:29,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-30 02:28:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-30 02:28:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-30 02:28:29,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2020-11-30 02:28:29,732 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 9 [2020-11-30 02:28:29,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:29,733 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2020-11-30 02:28:29,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:28:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2020-11-30 02:28:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 02:28:29,738 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:29,738 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:29,739 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:28:29,739 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:29,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:29,740 INFO L82 PathProgramCache]: Analyzing trace with hash 2070195218, now seen corresponding path program 1 times [2020-11-30 02:28:29,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:29,742 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878000226] [2020-11-30 02:28:29,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:29,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878000226] [2020-11-30 02:28:29,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:29,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:28:29,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585538600] [2020-11-30 02:28:29,817 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:28:29,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:29,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:28:29,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:29,819 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2020-11-30 02:28:29,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:29,928 INFO L93 Difference]: Finished difference Result 156 states and 228 transitions. [2020-11-30 02:28:29,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:28:29,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-11-30 02:28:29,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:29,932 INFO L225 Difference]: With dead ends: 156 [2020-11-30 02:28:29,932 INFO L226 Difference]: Without dead ends: 82 [2020-11-30 02:28:29,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:29,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-30 02:28:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2020-11-30 02:28:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-30 02:28:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2020-11-30 02:28:29,945 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 14 [2020-11-30 02:28:29,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:29,946 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2020-11-30 02:28:29,946 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:28:29,946 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2020-11-30 02:28:29,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 02:28:29,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:29,947 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:29,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:28:29,948 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:29,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:29,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1696083132, now seen corresponding path program 1 times [2020-11-30 02:28:29,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:29,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955794315] [2020-11-30 02:28:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:30,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:28:30,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955794315] [2020-11-30 02:28:30,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:30,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 02:28:30,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306887476] [2020-11-30 02:28:30,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:28:30,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:30,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:28:30,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:28:30,043 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 4 states. [2020-11-30 02:28:30,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:30,482 INFO L93 Difference]: Finished difference Result 253 states and 361 transitions. [2020-11-30 02:28:30,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:28:30,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-30 02:28:30,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:30,486 INFO L225 Difference]: With dead ends: 253 [2020-11-30 02:28:30,486 INFO L226 Difference]: Without dead ends: 163 [2020-11-30 02:28:30,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:28:30,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-30 02:28:30,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 128. [2020-11-30 02:28:30,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-11-30 02:28:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 193 transitions. [2020-11-30 02:28:30,523 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 193 transitions. Word has length 17 [2020-11-30 02:28:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:30,550 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 193 transitions. [2020-11-30 02:28:30,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:28:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 193 transitions. [2020-11-30 02:28:30,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 02:28:30,551 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:30,551 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:30,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 02:28:30,552 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:30,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:30,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1698301399, now seen corresponding path program 1 times [2020-11-30 02:28:30,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:30,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536863922] [2020-11-30 02:28:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:30,656 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:28:30,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536863922] [2020-11-30 02:28:30,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:30,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:28:30,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175240231] [2020-11-30 02:28:30,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:28:30,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:30,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:28:30,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:30,659 INFO L87 Difference]: Start difference. First operand 128 states and 193 transitions. Second operand 3 states. [2020-11-30 02:28:30,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:30,740 INFO L93 Difference]: Finished difference Result 218 states and 334 transitions. [2020-11-30 02:28:30,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:28:30,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-11-30 02:28:30,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:30,743 INFO L225 Difference]: With dead ends: 218 [2020-11-30 02:28:30,743 INFO L226 Difference]: Without dead ends: 92 [2020-11-30 02:28:30,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:30,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-11-30 02:28:30,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-11-30 02:28:30,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-11-30 02:28:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2020-11-30 02:28:30,761 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 21 [2020-11-30 02:28:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:30,761 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2020-11-30 02:28:30,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:28:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2020-11-30 02:28:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 02:28:30,769 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:30,769 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:30,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 02:28:30,769 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:30,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:30,770 INFO L82 PathProgramCache]: Analyzing trace with hash -782123627, now seen corresponding path program 1 times [2020-11-30 02:28:30,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:30,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019341791] [2020-11-30 02:28:30,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:30,846 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:28:30,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019341791] [2020-11-30 02:28:30,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:30,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:28:30,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644661265] [2020-11-30 02:28:30,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:28:30,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:30,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:28:30,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:30,849 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2020-11-30 02:28:30,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:30,998 INFO L93 Difference]: Finished difference Result 178 states and 265 transitions. [2020-11-30 02:28:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:28:30,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-30 02:28:30,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:31,000 INFO L225 Difference]: With dead ends: 178 [2020-11-30 02:28:31,001 INFO L226 Difference]: Without dead ends: 104 [2020-11-30 02:28:31,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-11-30 02:28:31,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 94. [2020-11-30 02:28:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-30 02:28:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2020-11-30 02:28:31,013 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 25 [2020-11-30 02:28:31,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:31,013 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2020-11-30 02:28:31,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:28:31,013 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2020-11-30 02:28:31,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 02:28:31,015 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:31,015 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:31,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 02:28:31,015 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:31,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:31,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1620162672, now seen corresponding path program 1 times [2020-11-30 02:28:31,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:31,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042637610] [2020-11-30 02:28:31,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:28:31,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042637610] [2020-11-30 02:28:31,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:31,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:28:31,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132464413] [2020-11-30 02:28:31,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:28:31,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:31,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:28:31,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:31,083 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand 3 states. [2020-11-30 02:28:31,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:31,150 INFO L93 Difference]: Finished difference Result 161 states and 224 transitions. [2020-11-30 02:28:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:28:31,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-30 02:28:31,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:31,153 INFO L225 Difference]: With dead ends: 161 [2020-11-30 02:28:31,154 INFO L226 Difference]: Without dead ends: 87 [2020-11-30 02:28:31,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:31,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-30 02:28:31,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-30 02:28:31,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-30 02:28:31,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 114 transitions. [2020-11-30 02:28:31,174 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 114 transitions. Word has length 26 [2020-11-30 02:28:31,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:31,174 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 114 transitions. [2020-11-30 02:28:31,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:28:31,175 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2020-11-30 02:28:31,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-30 02:28:31,178 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:31,178 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:31,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 02:28:31,179 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:31,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:31,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1483808517, now seen corresponding path program 1 times [2020-11-30 02:28:31,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:31,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505099439] [2020-11-30 02:28:31,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:31,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:28:31,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505099439] [2020-11-30 02:28:31,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:31,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:28:31,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508225021] [2020-11-30 02:28:31,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:28:31,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:31,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:28:31,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:31,256 INFO L87 Difference]: Start difference. First operand 87 states and 114 transitions. Second operand 3 states. [2020-11-30 02:28:31,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:31,318 INFO L93 Difference]: Finished difference Result 132 states and 175 transitions. [2020-11-30 02:28:31,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:28:31,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-30 02:28:31,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:31,320 INFO L225 Difference]: With dead ends: 132 [2020-11-30 02:28:31,320 INFO L226 Difference]: Without dead ends: 65 [2020-11-30 02:28:31,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-30 02:28:31,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-30 02:28:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-30 02:28:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions. [2020-11-30 02:28:31,332 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 83 transitions. Word has length 26 [2020-11-30 02:28:31,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:31,335 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 83 transitions. [2020-11-30 02:28:31,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:28:31,335 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 83 transitions. [2020-11-30 02:28:31,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-30 02:28:31,337 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:28:31,337 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:28:31,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 02:28:31,338 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:28:31,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:28:31,339 INFO L82 PathProgramCache]: Analyzing trace with hash -938611475, now seen corresponding path program 1 times [2020-11-30 02:28:31,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:28:31,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325570587] [2020-11-30 02:28:31,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:28:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:28:31,416 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 02:28:31,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325570587] [2020-11-30 02:28:31,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:28:31,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:28:31,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119093376] [2020-11-30 02:28:31,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:28:31,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:28:31,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:28:31,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:31,420 INFO L87 Difference]: Start difference. First operand 65 states and 83 transitions. Second operand 3 states. [2020-11-30 02:28:31,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:28:31,461 INFO L93 Difference]: Finished difference Result 106 states and 138 transitions. [2020-11-30 02:28:31,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:28:31,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-11-30 02:28:31,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:28:31,462 INFO L225 Difference]: With dead ends: 106 [2020-11-30 02:28:31,463 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:28:31,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:28:31,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:28:31,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:28:31,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:28:31,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:28:31,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-11-30 02:28:31,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:28:31,464 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:28:31,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:28:31,464 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:28:31,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:28:31,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 02:28:31,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:28:31,601 INFO L274 CegarLoopResult]: For program point L250(lines 250 265) no Hoare annotation was computed. [2020-11-30 02:28:31,602 INFO L274 CegarLoopResult]: For program point L118(lines 118 133) no Hoare annotation was computed. [2020-11-30 02:28:31,602 INFO L274 CegarLoopResult]: For program point L52(lines 52 63) no Hoare annotation was computed. [2020-11-30 02:28:31,602 INFO L274 CegarLoopResult]: For program point L366(lines 366 381) no Hoare annotation was computed. [2020-11-30 02:28:31,602 INFO L274 CegarLoopResult]: For program point L234(lines 234 249) no Hoare annotation was computed. [2020-11-30 02:28:31,602 INFO L274 CegarLoopResult]: For program point L168(lines 168 179) no Hoare annotation was computed. [2020-11-30 02:28:31,602 INFO L274 CegarLoopResult]: For program point L102(lines 102 117) no Hoare annotation was computed. [2020-11-30 02:28:31,602 INFO L274 CegarLoopResult]: For program point L36(lines 36 38) no Hoare annotation was computed. [2020-11-30 02:28:31,603 INFO L270 CegarLoopResult]: At program point L383(lines 24 387) the Hoare annotation is: (or (and (<= 4 ULTIMATE.start_main_~q~0) (= 3 ULTIMATE.start_main_~this_state~0)) (= ULTIMATE.start_main_~q~0 0) (and (= ULTIMATE.start_main_~q~0 3) (= 2 ULTIMATE.start_main_~this_state~0)) (and (= ULTIMATE.start_main_~this_state~0 0) (= ULTIMATE.start_main_~q~0 2))) [2020-11-30 02:28:31,603 INFO L274 CegarLoopResult]: For program point L350(lines 350 365) no Hoare annotation was computed. [2020-11-30 02:28:31,603 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:28:31,603 INFO L274 CegarLoopResult]: For program point L218(lines 218 233) no Hoare annotation was computed. [2020-11-30 02:28:31,603 INFO L274 CegarLoopResult]: For program point L185(lines 185 284) no Hoare annotation was computed. [2020-11-30 02:28:31,603 INFO L274 CegarLoopResult]: For program point L152(lines 152 163) no Hoare annotation was computed. [2020-11-30 02:28:31,603 INFO L274 CegarLoopResult]: For program point L334(lines 334 349) no Hoare annotation was computed. [2020-11-30 02:28:31,603 INFO L274 CegarLoopResult]: For program point L268(lines 268 279) no Hoare annotation was computed. [2020-11-30 02:28:31,603 INFO L274 CegarLoopResult]: For program point L202(lines 202 217) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L136(lines 136 147) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L318(lines 318 333) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L285(lines 285 384) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L252(lines 252 263) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L186(lines 186 201) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L120(lines 120 131) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L368(lines 368 379) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L302(lines 302 317) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L236(lines 236 247) no Hoare annotation was computed. [2020-11-30 02:28:31,604 INFO L274 CegarLoopResult]: For program point L104(lines 104 115) no Hoare annotation was computed. [2020-11-30 02:28:31,605 INFO L274 CegarLoopResult]: For program point L352(lines 352 363) no Hoare annotation was computed. [2020-11-30 02:28:31,605 INFO L274 CegarLoopResult]: For program point L286(lines 286 301) no Hoare annotation was computed. [2020-11-30 02:28:31,605 INFO L274 CegarLoopResult]: For program point L220(lines 220 231) no Hoare annotation was computed. [2020-11-30 02:28:31,605 INFO L274 CegarLoopResult]: For program point L88(lines 88 90) no Hoare annotation was computed. [2020-11-30 02:28:31,605 INFO L274 CegarLoopResult]: For program point L336(lines 336 347) no Hoare annotation was computed. [2020-11-30 02:28:31,612 INFO L274 CegarLoopResult]: For program point L204(lines 204 215) no Hoare annotation was computed. [2020-11-30 02:28:31,612 INFO L274 CegarLoopResult]: For program point L72(lines 72 74) no Hoare annotation was computed. [2020-11-30 02:28:31,613 INFO L274 CegarLoopResult]: For program point L320(lines 320 331) no Hoare annotation was computed. [2020-11-30 02:28:31,613 INFO L274 CegarLoopResult]: For program point L188(lines 188 199) no Hoare annotation was computed. [2020-11-30 02:28:31,613 INFO L274 CegarLoopResult]: For program point L56(lines 56 58) no Hoare annotation was computed. [2020-11-30 02:28:31,613 INFO L274 CegarLoopResult]: For program point L304(lines 304 315) no Hoare annotation was computed. [2020-11-30 02:28:31,614 INFO L274 CegarLoopResult]: For program point L172(lines 172 174) no Hoare annotation was computed. [2020-11-30 02:28:31,614 INFO L274 CegarLoopResult]: For program point L288(lines 288 299) no Hoare annotation was computed. [2020-11-30 02:28:31,614 INFO L274 CegarLoopResult]: For program point L156(lines 156 158) no Hoare annotation was computed. [2020-11-30 02:28:31,614 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 387) the Hoare annotation is: (or (and (not (= 2 ULTIMATE.start_main_~this_state~0)) (= ULTIMATE.start_main_~q~0 0)) (and (<= 4 ULTIMATE.start_main_~q~0) (= 3 ULTIMATE.start_main_~this_state~0))) [2020-11-30 02:28:31,614 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 387) no Hoare annotation was computed. [2020-11-30 02:28:31,615 INFO L274 CegarLoopResult]: For program point L272(lines 272 274) no Hoare annotation was computed. [2020-11-30 02:28:31,615 INFO L274 CegarLoopResult]: For program point L140(lines 140 142) no Hoare annotation was computed. [2020-11-30 02:28:31,615 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:28:31,615 INFO L274 CegarLoopResult]: For program point L256(lines 256 258) no Hoare annotation was computed. [2020-11-30 02:28:31,615 INFO L274 CegarLoopResult]: For program point L124(lines 124 126) no Hoare annotation was computed. [2020-11-30 02:28:31,615 INFO L274 CegarLoopResult]: For program point L372(lines 372 374) no Hoare annotation was computed. [2020-11-30 02:28:31,616 INFO L274 CegarLoopResult]: For program point L240(lines 240 242) no Hoare annotation was computed. [2020-11-30 02:28:31,616 INFO L274 CegarLoopResult]: For program point L108(lines 108 110) no Hoare annotation was computed. [2020-11-30 02:28:31,617 INFO L274 CegarLoopResult]: For program point L356(lines 356 358) no Hoare annotation was computed. [2020-11-30 02:28:31,617 INFO L274 CegarLoopResult]: For program point L224(lines 224 226) no Hoare annotation was computed. [2020-11-30 02:28:31,617 INFO L270 CegarLoopResult]: At program point L373(lines 15 392) the Hoare annotation is: false [2020-11-30 02:28:31,617 INFO L274 CegarLoopResult]: For program point L340(lines 340 342) no Hoare annotation was computed. [2020-11-30 02:28:31,617 INFO L274 CegarLoopResult]: For program point L208(lines 208 210) no Hoare annotation was computed. [2020-11-30 02:28:31,617 INFO L274 CegarLoopResult]: For program point L324(lines 324 326) no Hoare annotation was computed. [2020-11-30 02:28:31,618 INFO L274 CegarLoopResult]: For program point L192(lines 192 194) no Hoare annotation was computed. [2020-11-30 02:28:31,619 INFO L274 CegarLoopResult]: For program point L308(lines 308 310) no Hoare annotation was computed. [2020-11-30 02:28:31,619 INFO L274 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-11-30 02:28:31,619 INFO L274 CegarLoopResult]: For program point L29(lines 29 48) no Hoare annotation was computed. [2020-11-30 02:28:31,621 INFO L274 CegarLoopResult]: For program point L30(lines 30 45) no Hoare annotation was computed. [2020-11-30 02:28:31,621 INFO L277 CegarLoopResult]: At program point L15(lines 15 392) the Hoare annotation is: true [2020-11-30 02:28:31,621 INFO L274 CegarLoopResult]: For program point L32(lines 32 43) no Hoare annotation was computed. [2020-11-30 02:28:31,621 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-30 02:28:31,622 INFO L274 CegarLoopResult]: For program point L82(lines 82 97) no Hoare annotation was computed. [2020-11-30 02:28:31,622 INFO L274 CegarLoopResult]: For program point L49(lines 49 100) no Hoare annotation was computed. [2020-11-30 02:28:31,622 INFO L274 CegarLoopResult]: For program point L66(lines 66 81) no Hoare annotation was computed. [2020-11-30 02:28:31,622 INFO L274 CegarLoopResult]: For program point L50(lines 50 65) no Hoare annotation was computed. [2020-11-30 02:28:31,622 INFO L274 CegarLoopResult]: For program point L166(lines 166 181) no Hoare annotation was computed. [2020-11-30 02:28:31,622 INFO L274 CegarLoopResult]: For program point L150(lines 150 165) no Hoare annotation was computed. [2020-11-30 02:28:31,622 INFO L274 CegarLoopResult]: For program point L84(lines 84 95) no Hoare annotation was computed. [2020-11-30 02:28:31,623 INFO L274 CegarLoopResult]: For program point L266(lines 266 281) no Hoare annotation was computed. [2020-11-30 02:28:31,623 INFO L274 CegarLoopResult]: For program point L134(lines 134 149) no Hoare annotation was computed. [2020-11-30 02:28:31,623 INFO L274 CegarLoopResult]: For program point L101(lines 101 184) no Hoare annotation was computed. [2020-11-30 02:28:31,623 INFO L274 CegarLoopResult]: For program point L68(lines 68 79) no Hoare annotation was computed. [2020-11-30 02:28:31,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:28:31 BoogieIcfgContainer [2020-11-30 02:28:31,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:28:31,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:28:31,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:28:31,649 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:28:31,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:28:29" (3/4) ... [2020-11-30 02:28:31,653 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:28:31,676 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 02:28:31,677 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 02:28:31,677 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:28:31,677 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:28:31,724 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d590bb6d-27ec-4c9a-905d-1edcee3b2acb/bin/utaipan/witness.graphml [2020-11-30 02:28:31,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:28:31,727 INFO L168 Benchmark]: Toolchain (without parser) took 4131.40 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 69.3 MB in the beginning and 46.5 MB in the end (delta: 22.8 MB). Peak memory consumption was 57.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:31,735 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 74.9 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:28:31,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.78 ms. Allocated memory is still 104.9 MB. Free memory was 69.0 MB in the beginning and 79.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:31,737 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.55 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 77.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:31,737 INFO L168 Benchmark]: Boogie Preprocessor took 86.81 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 75.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:28:31,738 INFO L168 Benchmark]: RCFGBuilder took 865.07 ms. Allocated memory is still 104.9 MB. Free memory was 75.5 MB in the beginning and 45.8 MB in the end (delta: 29.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:31,739 INFO L168 Benchmark]: TraceAbstraction took 2609.61 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 45.3 MB in the beginning and 48.6 MB in the end (delta: -3.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:31,739 INFO L168 Benchmark]: Witness Printer took 75.29 ms. Allocated memory is still 142.6 MB. Free memory was 48.6 MB in the beginning and 46.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:28:31,748 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 104.9 MB. Free memory was 75.0 MB in the beginning and 74.9 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.78 ms. Allocated memory is still 104.9 MB. Free memory was 69.0 MB in the beginning and 79.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.55 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 77.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.81 ms. Allocated memory is still 104.9 MB. Free memory was 77.2 MB in the beginning and 75.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 865.07 ms. Allocated memory is still 104.9 MB. Free memory was 75.5 MB in the beginning and 45.8 MB in the end (delta: 29.8 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2609.61 ms. Allocated memory was 104.9 MB in the beginning and 142.6 MB in the end (delta: 37.7 MB). Free memory was 45.3 MB in the beginning and 48.6 MB in the end (delta: -3.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. * Witness Printer took 75.29 ms. Allocated memory is still 142.6 MB. Free memory was 48.6 MB in the beginning and 46.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (!(2 == this_state) && q == 0) || (4 <= q && 3 == this_state) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((4 <= q && 3 == this_state) || q == 0) || (q == 3 && 2 == this_state)) || (this_state == 0 && q == 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 870 SDtfs, 271 SDslu, 506 SDs, 0 SdLazy, 271 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 47 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 43 HoareAnnotationTreeSize, 4 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 165 ConstructedInterpolants, 0 QuantifiedInterpolants, 5895 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 43/43 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...