./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.01.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.01.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 278371fb5fb32cd768dabde497dd9d5964ee74d9 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 23:16:40,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:16:40,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:16:40,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:16:40,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:16:40,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:16:40,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:16:40,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:16:40,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:16:40,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:16:40,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:16:40,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:16:40,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:16:40,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:16:40,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:16:40,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:16:40,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:16:40,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:16:40,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:16:40,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:16:40,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:16:40,086 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:16:40,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:16:40,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:16:40,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:16:40,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:16:40,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:16:40,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:16:40,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:16:40,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:16:40,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:16:40,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:16:40,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:16:40,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:16:40,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:16:40,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:16:40,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:16:40,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:16:40,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:16:40,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:16:40,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:16:40,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:16:40,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:16:40,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:16:40,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:16:40,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:16:40,182 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:16:40,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:16:40,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:16:40,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:16:40,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:16:40,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:16:40,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:16:40,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:16:40,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:16:40,184 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:16:40,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:16:40,185 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:16:40,185 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:16:40,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:16:40,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:16:40,186 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:16:40,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:16:40,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:16:40,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:16:40,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:16:40,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:16:40,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:16:40,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:16:40,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:16:40,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:16:40,188 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278371fb5fb32cd768dabde497dd9d5964ee74d9 [2020-10-25 23:16:40,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:16:40,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:16:40,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:16:40,588 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:16:40,589 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:16:40,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.01.cil.c [2020-10-25 23:16:40,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f60bd4ac/fe562a90716b4256b37cfc5b2c22a4b7/FLAG4aa40d493 [2020-10-25 23:16:41,286 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:16:41,287 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.01.cil.c [2020-10-25 23:16:41,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f60bd4ac/fe562a90716b4256b37cfc5b2c22a4b7/FLAG4aa40d493 [2020-10-25 23:16:41,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f60bd4ac/fe562a90716b4256b37cfc5b2c22a4b7 [2020-10-25 23:16:41,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:16:41,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:16:41,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:16:41,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:16:41,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:16:41,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:16:41" (1/1) ... [2020-10-25 23:16:41,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4a61e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:41, skipping insertion in model container [2020-10-25 23:16:41,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:16:41" (1/1) ... [2020-10-25 23:16:41,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:16:41,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:16:41,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:16:41,975 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:16:42,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:16:42,039 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:16:42,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42 WrapperNode [2020-10-25 23:16:42,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:16:42,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:16:42,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:16:42,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:16:42,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:16:42,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:16:42,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:16:42,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:16:42,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... [2020-10-25 23:16:42,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:16:42,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:16:42,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:16:42,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:16:42,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-25 23:16:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:16:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:16:42,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:16:42,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:16:43,141 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:16:43,142 INFO L298 CfgBuilder]: Removed 75 assume(true) statements. [2020-10-25 23:16:43,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:16:43 BoogieIcfgContainer [2020-10-25 23:16:43,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:16:43,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:16:43,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:16:43,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:16:43,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:16:41" (1/3) ... [2020-10-25 23:16:43,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f9419a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:16:43, skipping insertion in model container [2020-10-25 23:16:43,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:16:42" (2/3) ... [2020-10-25 23:16:43,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f9419a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:16:43, skipping insertion in model container [2020-10-25 23:16:43,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:16:43" (3/3) ... [2020-10-25 23:16:43,153 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-10-25 23:16:43,164 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:16:43,169 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 23:16:43,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 23:16:43,208 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:16:43,208 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:16:43,208 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:16:43,208 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:16:43,208 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:16:43,208 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:16:43,208 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:16:43,209 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:16:43,227 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2020-10-25 23:16:43,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-25 23:16:43,235 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:43,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:43,236 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:43,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:43,243 INFO L82 PathProgramCache]: Analyzing trace with hash 827300887, now seen corresponding path program 1 times [2020-10-25 23:16:43,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:43,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400844837] [2020-10-25 23:16:43,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:43,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400844837] [2020-10-25 23:16:43,456 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:43,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:16:43,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442389380] [2020-10-25 23:16:43,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:16:43,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:43,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:16:43,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:16:43,484 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2020-10-25 23:16:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:43,544 INFO L93 Difference]: Finished difference Result 240 states and 374 transitions. [2020-10-25 23:16:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:16:43,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-25 23:16:43,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:43,560 INFO L225 Difference]: With dead ends: 240 [2020-10-25 23:16:43,560 INFO L226 Difference]: Without dead ends: 118 [2020-10-25 23:16:43,564 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 [2020-10-25 23:16:43,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-25 23:16:43,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-10-25 23:16:43,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-25 23:16:43,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 174 transitions. [2020-10-25 23:16:43,622 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 174 transitions. Word has length 37 [2020-10-25 23:16:43,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:43,623 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 174 transitions. [2020-10-25 23:16:43,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:16:43,623 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 174 transitions. [2020-10-25 23:16:43,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-25 23:16:43,625 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:43,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:43,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:16:43,625 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:43,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:43,627 INFO L82 PathProgramCache]: Analyzing trace with hash 899687445, now seen corresponding path program 1 times [2020-10-25 23:16:43,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:43,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838361753] [2020-10-25 23:16:43,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:43,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:43,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838361753] [2020-10-25 23:16:43,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:43,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:16:43,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127683889] [2020-10-25 23:16:43,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:16:43,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:43,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:16:43,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:16:43,750 INFO L87 Difference]: Start difference. First operand 118 states and 174 transitions. Second operand 3 states. [2020-10-25 23:16:43,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:43,828 INFO L93 Difference]: Finished difference Result 308 states and 454 transitions. [2020-10-25 23:16:43,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:16:43,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-25 23:16:43,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:43,832 INFO L225 Difference]: With dead ends: 308 [2020-10-25 23:16:43,833 INFO L226 Difference]: Without dead ends: 196 [2020-10-25 23:16:43,834 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 [2020-10-25 23:16:43,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-25 23:16:43,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2020-10-25 23:16:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-25 23:16:43,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 280 transitions. [2020-10-25 23:16:43,863 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 280 transitions. Word has length 37 [2020-10-25 23:16:43,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:43,863 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 280 transitions. [2020-10-25 23:16:43,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:16:43,864 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 280 transitions. [2020-10-25 23:16:43,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-25 23:16:43,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:43,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:43,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:16:43,866 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:43,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:43,867 INFO L82 PathProgramCache]: Analyzing trace with hash -413900843, now seen corresponding path program 1 times [2020-10-25 23:16:43,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:43,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991971462] [2020-10-25 23:16:43,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:43,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:43,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991971462] [2020-10-25 23:16:43,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:43,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:16:43,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614764743] [2020-10-25 23:16:43,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:16:43,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:43,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:16:43,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:16:43,926 INFO L87 Difference]: Start difference. First operand 194 states and 280 transitions. Second operand 3 states. [2020-10-25 23:16:43,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:43,968 INFO L93 Difference]: Finished difference Result 381 states and 551 transitions. [2020-10-25 23:16:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:16:43,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-25 23:16:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:43,971 INFO L225 Difference]: With dead ends: 381 [2020-10-25 23:16:43,972 INFO L226 Difference]: Without dead ends: 194 [2020-10-25 23:16:43,973 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 [2020-10-25 23:16:43,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-25 23:16:43,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-10-25 23:16:43,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-25 23:16:43,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 272 transitions. [2020-10-25 23:16:43,998 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 272 transitions. Word has length 37 [2020-10-25 23:16:43,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:43,999 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 272 transitions. [2020-10-25 23:16:43,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:16:43,999 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 272 transitions. [2020-10-25 23:16:44,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-25 23:16:44,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:44,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:44,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:16:44,001 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:44,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:44,003 INFO L82 PathProgramCache]: Analyzing trace with hash -733369323, now seen corresponding path program 1 times [2020-10-25 23:16:44,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:44,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533256462] [2020-10-25 23:16:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:44,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:44,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533256462] [2020-10-25 23:16:44,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:44,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:16:44,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746988252] [2020-10-25 23:16:44,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:16:44,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:44,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:16:44,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:16:44,061 INFO L87 Difference]: Start difference. First operand 194 states and 272 transitions. Second operand 3 states. [2020-10-25 23:16:44,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:44,116 INFO L93 Difference]: Finished difference Result 380 states and 534 transitions. [2020-10-25 23:16:44,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:16:44,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-25 23:16:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:44,120 INFO L225 Difference]: With dead ends: 380 [2020-10-25 23:16:44,120 INFO L226 Difference]: Without dead ends: 194 [2020-10-25 23:16:44,122 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 [2020-10-25 23:16:44,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-25 23:16:44,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-10-25 23:16:44,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-10-25 23:16:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 260 transitions. [2020-10-25 23:16:44,144 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 260 transitions. Word has length 37 [2020-10-25 23:16:44,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:44,145 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 260 transitions. [2020-10-25 23:16:44,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:16:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 260 transitions. [2020-10-25 23:16:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-25 23:16:44,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:44,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:44,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:16:44,148 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:44,149 INFO L82 PathProgramCache]: Analyzing trace with hash -2103987404, now seen corresponding path program 1 times [2020-10-25 23:16:44,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:44,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066877404] [2020-10-25 23:16:44,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:44,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066877404] [2020-10-25 23:16:44,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:44,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:16:44,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744110271] [2020-10-25 23:16:44,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:16:44,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:44,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:16:44,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:16:44,212 INFO L87 Difference]: Start difference. First operand 194 states and 260 transitions. Second operand 5 states. [2020-10-25 23:16:44,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:44,335 INFO L93 Difference]: Finished difference Result 628 states and 846 transitions. [2020-10-25 23:16:44,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:16:44,336 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-10-25 23:16:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:44,339 INFO L225 Difference]: With dead ends: 628 [2020-10-25 23:16:44,339 INFO L226 Difference]: Without dead ends: 449 [2020-10-25 23:16:44,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 23:16:44,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2020-10-25 23:16:44,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 203. [2020-10-25 23:16:44,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-25 23:16:44,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 266 transitions. [2020-10-25 23:16:44,366 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 266 transitions. Word has length 37 [2020-10-25 23:16:44,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:44,367 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 266 transitions. [2020-10-25 23:16:44,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:16:44,367 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 266 transitions. [2020-10-25 23:16:44,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-25 23:16:44,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:44,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:44,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:16:44,369 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:44,370 INFO L82 PathProgramCache]: Analyzing trace with hash 2056966386, now seen corresponding path program 1 times [2020-10-25 23:16:44,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:44,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618349447] [2020-10-25 23:16:44,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:44,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618349447] [2020-10-25 23:16:44,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:44,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:16:44,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101859107] [2020-10-25 23:16:44,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:16:44,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:44,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:16:44,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:16:44,426 INFO L87 Difference]: Start difference. First operand 203 states and 266 transitions. Second operand 5 states. [2020-10-25 23:16:44,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:44,555 INFO L93 Difference]: Finished difference Result 540 states and 716 transitions. [2020-10-25 23:16:44,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:16:44,556 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2020-10-25 23:16:44,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:44,558 INFO L225 Difference]: With dead ends: 540 [2020-10-25 23:16:44,558 INFO L226 Difference]: Without dead ends: 359 [2020-10-25 23:16:44,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-25 23:16:44,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2020-10-25 23:16:44,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 209. [2020-10-25 23:16:44,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-25 23:16:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 268 transitions. [2020-10-25 23:16:44,585 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 268 transitions. Word has length 37 [2020-10-25 23:16:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:44,585 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 268 transitions. [2020-10-25 23:16:44,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:16:44,585 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 268 transitions. [2020-10-25 23:16:44,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-25 23:16:44,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:44,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:44,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 23:16:44,587 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:44,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:44,588 INFO L82 PathProgramCache]: Analyzing trace with hash 62821680, now seen corresponding path program 1 times [2020-10-25 23:16:44,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:44,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105109040] [2020-10-25 23:16:44,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:44,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105109040] [2020-10-25 23:16:44,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:44,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:16:44,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664713646] [2020-10-25 23:16:44,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:16:44,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:44,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:16:44,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:16:44,744 INFO L87 Difference]: Start difference. First operand 209 states and 268 transitions. Second operand 3 states. [2020-10-25 23:16:44,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:44,872 INFO L93 Difference]: Finished difference Result 554 states and 708 transitions. [2020-10-25 23:16:44,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:16:44,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-25 23:16:44,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:44,875 INFO L225 Difference]: With dead ends: 554 [2020-10-25 23:16:44,876 INFO L226 Difference]: Without dead ends: 370 [2020-10-25 23:16:44,877 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 [2020-10-25 23:16:44,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-10-25 23:16:44,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 355. [2020-10-25 23:16:44,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-10-25 23:16:44,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 443 transitions. [2020-10-25 23:16:44,918 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 443 transitions. Word has length 37 [2020-10-25 23:16:44,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:44,919 INFO L481 AbstractCegarLoop]: Abstraction has 355 states and 443 transitions. [2020-10-25 23:16:44,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:16:44,920 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 443 transitions. [2020-10-25 23:16:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-25 23:16:44,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:44,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:44,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 23:16:44,930 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:44,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:44,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1851829351, now seen corresponding path program 1 times [2020-10-25 23:16:44,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:44,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954307275] [2020-10-25 23:16:44,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:45,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954307275] [2020-10-25 23:16:45,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:45,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:16:45,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094646611] [2020-10-25 23:16:45,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:16:45,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:45,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:16:45,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:16:45,054 INFO L87 Difference]: Start difference. First operand 355 states and 443 transitions. Second operand 3 states. [2020-10-25 23:16:45,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:45,152 INFO L93 Difference]: Finished difference Result 967 states and 1214 transitions. [2020-10-25 23:16:45,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:16:45,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2020-10-25 23:16:45,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:45,157 INFO L225 Difference]: With dead ends: 967 [2020-10-25 23:16:45,157 INFO L226 Difference]: Without dead ends: 642 [2020-10-25 23:16:45,158 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 [2020-10-25 23:16:45,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-10-25 23:16:45,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 634. [2020-10-25 23:16:45,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-10-25 23:16:45,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 784 transitions. [2020-10-25 23:16:45,221 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 784 transitions. Word has length 38 [2020-10-25 23:16:45,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:45,221 INFO L481 AbstractCegarLoop]: Abstraction has 634 states and 784 transitions. [2020-10-25 23:16:45,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:16:45,222 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 784 transitions. [2020-10-25 23:16:45,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-25 23:16:45,223 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:45,223 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:45,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 23:16:45,224 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:45,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:45,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1992530247, now seen corresponding path program 1 times [2020-10-25 23:16:45,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:45,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57245422] [2020-10-25 23:16:45,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:45,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:16:45,277 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:16:45,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57245422] [2020-10-25 23:16:45,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:16:45,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:16:45,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851278878] [2020-10-25 23:16:45,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:16:45,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:16:45,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:16:45,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:16:45,281 INFO L87 Difference]: Start difference. First operand 634 states and 784 transitions. Second operand 4 states. [2020-10-25 23:16:45,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:16:45,463 INFO L93 Difference]: Finished difference Result 1784 states and 2213 transitions. [2020-10-25 23:16:45,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:16:45,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-10-25 23:16:45,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:16:45,469 INFO L225 Difference]: With dead ends: 1784 [2020-10-25 23:16:45,469 INFO L226 Difference]: Without dead ends: 921 [2020-10-25 23:16:45,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:16:45,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-10-25 23:16:45,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2020-10-25 23:16:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-10-25 23:16:45,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1123 transitions. [2020-10-25 23:16:45,556 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1123 transitions. Word has length 51 [2020-10-25 23:16:45,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:16:45,556 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1123 transitions. [2020-10-25 23:16:45,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:16:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1123 transitions. [2020-10-25 23:16:45,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-25 23:16:45,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:16:45,558 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:16:45,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 23:16:45,558 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:16:45,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:16:45,559 INFO L82 PathProgramCache]: Analyzing trace with hash 680531928, now seen corresponding path program 1 times [2020-10-25 23:16:45,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:16:45,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365164766] [2020-10-25 23:16:45,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:16:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:16:45,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:16:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 23:16:45,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 23:16:45,643 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 23:16:45,643 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 23:16:45,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 23:16:45,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:16:45 BoogieIcfgContainer [2020-10-25 23:16:45,766 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:16:45,767 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:16:45,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:16:45,768 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:16:45,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:16:43" (3/4) ... [2020-10-25 23:16:45,777 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-25 23:16:45,913 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:16:45,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:16:45,916 INFO L168 Benchmark]: Toolchain (without parser) took 4269.57 ms. Allocated memory was 39.8 MB in the beginning and 86.0 MB in the end (delta: 46.1 MB). Free memory was 16.5 MB in the beginning and 61.1 MB in the end (delta: -44.6 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2020-10-25 23:16:45,916 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 39.8 MB. Free memory was 26.1 MB in the beginning and 26.1 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:16:45,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.98 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.9 MB in the beginning and 21.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:16:45,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.25 ms. Allocated memory is still 48.2 MB. Free memory was 21.0 MB in the beginning and 32.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-25 23:16:45,918 INFO L168 Benchmark]: Boogie Preprocessor took 38.60 ms. Allocated memory is still 48.2 MB. Free memory was 32.2 MB in the beginning and 30.3 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:16:45,918 INFO L168 Benchmark]: RCFGBuilder took 996.02 ms. Allocated memory is still 48.2 MB. Free memory was 30.3 MB in the beginning and 24.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2020-10-25 23:16:45,919 INFO L168 Benchmark]: TraceAbstraction took 2620.75 ms. Allocated memory was 48.2 MB in the beginning and 86.0 MB in the end (delta: 37.7 MB). Free memory was 23.7 MB in the beginning and 35.5 MB in the end (delta: -11.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-10-25 23:16:45,919 INFO L168 Benchmark]: Witness Printer took 146.35 ms. Allocated memory is still 86.0 MB. Free memory was 35.5 MB in the beginning and 61.1 MB in the end (delta: -25.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:16:45,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 39.8 MB. Free memory was 26.1 MB in the beginning and 26.1 MB in the end (delta: 26.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 387.98 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.9 MB in the beginning and 21.0 MB in the end (delta: -5.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.25 ms. Allocated memory is still 48.2 MB. Free memory was 21.0 MB in the beginning and 32.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.60 ms. Allocated memory is still 48.2 MB. Free memory was 32.2 MB in the beginning and 30.3 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 996.02 ms. Allocated memory is still 48.2 MB. Free memory was 30.3 MB in the beginning and 24.2 MB in the end (delta: 6.2 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2620.75 ms. Allocated memory was 48.2 MB in the beginning and 86.0 MB in the end (delta: 37.7 MB). Free memory was 23.7 MB in the beginning and 35.5 MB in the end (delta: -11.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * Witness Printer took 146.35 ms. Allocated memory is still 86.0 MB. Free memory was 35.5 MB in the beginning and 61.1 MB in the end (delta: -25.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] int m_pc = 0; [L18] int t1_pc = 0; [L19] int m_st ; [L20] int t1_st ; [L21] int m_i ; [L22] int t1_i ; [L23] int M_E = 2; [L24] int T1_E = 2; [L25] int E_1 = 2; VAL [E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L441] int __retres1 ; [L356] m_i = 1 [L357] t1_i = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L382] int kernel_st ; [L383] int tmp ; [L384] int tmp___0 ; [L388] kernel_st = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L153] COND TRUE m_i == 1 [L154] m_st = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L158] COND TRUE t1_i == 1 [L159] t1_st = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L242] COND FALSE !(M_E == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L247] COND FALSE !(T1_E == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L252] COND FALSE !(E_1 == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L285] int tmp ; [L286] int tmp___0 ; [L104] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L107] COND FALSE !(m_pc == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L117] __retres1 = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L119] return (__retres1); VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L123] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L126] COND FALSE !(t1_pc == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L136] __retres1 = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L138] return (__retres1); VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L298] tmp___0 = is_transmit1_triggered() [L300] COND FALSE !(\read(tmp___0)) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L265] COND FALSE !(M_E == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L270] COND FALSE !(T1_E == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L275] COND FALSE !(E_1 == 1) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L396] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L399] kernel_st = 1 [L189] int tmp ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L193] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L168] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L184] return (__retres1); VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L74] COND TRUE t1_pc == 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L85] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L87] t1_pc = 1 [L88] t1_st = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L193] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L168] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L171] COND TRUE m_st == 0 [L172] __retres1 = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L184] return (__retres1); VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L196] tmp = exists_runnable_thread() [L198] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L203] COND TRUE m_st == 0 [L204] int tmp_ndt_1; [L205] tmp_ndt_1 = __VERIFIER_nondet_int() [L206] COND TRUE \read(tmp_ndt_1) [L208] m_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L33] COND TRUE m_pc == 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L44] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L47] E_1 = 1 [L285] int tmp ; [L286] int tmp___0 ; [L104] int __retres1 ; VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L107] COND FALSE !(m_pc == 1) VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L117] __retres1 = 0 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L119] return (__retres1); VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L290] tmp = is_master_triggered() [L292] COND FALSE !(\read(tmp)) VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L123] int __retres1 ; VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L126] COND TRUE t1_pc == 1 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L127] COND TRUE E_1 == 1 [L128] __retres1 = 1 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L138] return (__retres1); VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L298] tmp___0 = is_transmit1_triggered() [L300] COND TRUE \read(tmp___0) [L301] t1_st = 0 VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L49] E_1 = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L52] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L54] m_pc = 1 [L55] m_st = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L217] COND TRUE t1_st == 0 [L218] int tmp_ndt_2; [L219] tmp_ndt_2 = __VERIFIER_nondet_int() [L220] COND TRUE \read(tmp_ndt_2) [L222] t1_st = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L74] COND FALSE !(t1_pc == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L77] COND TRUE t1_pc == 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L3] __assert_fail("0", "transmitter.01.cil.c", 3, "reach_error") VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1528 SDtfs, 1813 SDslu, 1437 SDs, 0 SdLazy, 175 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=921occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 421 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 416 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 339 ConstructedInterpolants, 0 QuantifiedInterpolants, 21541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 11/11 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 incorrect! Received shutdown request...