./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label30.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/eca-rers2012/Problem14_label30.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 66618db5a3db7dcc678cb9548aafa9cdab01bb4f ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 23:28:26,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 23:28:26,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 23:28:26,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 23:28:26,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 23:28:26,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 23:28:26,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 23:28:26,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 23:28:26,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 23:28:26,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 23:28:26,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 23:28:26,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 23:28:26,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 23:28:26,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 23:28:26,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 23:28:26,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 23:28:26,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 23:28:26,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 23:28:26,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 23:28:26,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 23:28:26,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 23:28:26,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 23:28:26,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 23:28:26,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 23:28:26,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 23:28:26,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 23:28:26,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 23:28:26,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 23:28:26,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 23:28:26,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 23:28:26,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 23:28:26,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 23:28:26,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 23:28:26,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 23:28:26,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 23:28:26,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 23:28:26,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 23:28:26,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 23:28:26,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 23:28:26,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 23:28:26,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 23:28:26,206 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 23:28:26,227 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 23:28:26,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 23:28:26,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 23:28:26,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 23:28:26,229 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 23:28:26,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 23:28:26,230 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 23:28:26,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 23:28:26,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 23:28:26,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 23:28:26,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 23:28:26,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 23:28:26,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 23:28:26,232 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 23:28:26,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 23:28:26,232 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 23:28:26,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 23:28:26,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 23:28:26,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 23:28:26,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 23:28:26,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 23:28:26,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 23:28:26,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 23:28:26,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 23:28:26,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 23:28:26,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 23:28:26,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 23:28:26,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 23:28:26,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 23:28:26,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 66618db5a3db7dcc678cb9548aafa9cdab01bb4f [2020-10-19 23:28:26,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 23:28:26,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 23:28:26,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 23:28:26,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 23:28:26,457 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 23:28:26,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label30.c [2020-10-19 23:28:26,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79558240/6504b0a4d9a543259ffe55a62090c51d/FLAGf26baecc8 [2020-10-19 23:28:27,088 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 23:28:27,089 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label30.c [2020-10-19 23:28:27,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79558240/6504b0a4d9a543259ffe55a62090c51d/FLAGf26baecc8 [2020-10-19 23:28:27,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79558240/6504b0a4d9a543259ffe55a62090c51d [2020-10-19 23:28:27,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 23:28:27,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 23:28:27,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 23:28:27,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 23:28:27,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 23:28:27,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:28:27" (1/1) ... [2020-10-19 23:28:27,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3788d938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:27, skipping insertion in model container [2020-10-19 23:28:27,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 11:28:27" (1/1) ... [2020-10-19 23:28:27,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 23:28:27,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 23:28:27,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:28:27,993 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 23:28:28,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 23:28:28,155 INFO L208 MainTranslator]: Completed translation [2020-10-19 23:28:28,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28 WrapperNode [2020-10-19 23:28:28,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 23:28:28,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 23:28:28,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 23:28:28,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 23:28:28,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 23:28:28,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 23:28:28,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 23:28:28,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 23:28:28,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (1/1) ... [2020-10-19 23:28:28,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 23:28:28,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 23:28:28,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 23:28:28,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 23:28:28,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (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 [2020-10-19 23:28:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 23:28:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 23:28:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 23:28:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 23:28:30,175 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 23:28:30,175 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 23:28:30,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:28:30 BoogieIcfgContainer [2020-10-19 23:28:30,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 23:28:30,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 23:28:30,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 23:28:30,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 23:28:30,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 11:28:27" (1/3) ... [2020-10-19 23:28:30,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ee4a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:28:30, skipping insertion in model container [2020-10-19 23:28:30,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 11:28:28" (2/3) ... [2020-10-19 23:28:30,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ee4a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 11:28:30, skipping insertion in model container [2020-10-19 23:28:30,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:28:30" (3/3) ... [2020-10-19 23:28:30,188 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label30.c [2020-10-19 23:28:30,201 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 23:28:30,209 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 23:28:30,221 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 23:28:30,249 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 23:28:30,249 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 23:28:30,249 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 23:28:30,250 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 23:28:30,250 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 23:28:30,250 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 23:28:30,250 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 23:28:30,250 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 23:28:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-19 23:28:30,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-19 23:28:30,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:30,296 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, 1, 1, 1, 1, 1] [2020-10-19 23:28:30,296 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:30,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:30,303 INFO L82 PathProgramCache]: Analyzing trace with hash 712930081, now seen corresponding path program 1 times [2020-10-19 23:28:30,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:30,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596851002] [2020-10-19 23:28:30,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:30,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:30,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596851002] [2020-10-19 23:28:30,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:30,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:28:30,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845607529] [2020-10-19 23:28:30,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:30,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:30,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:30,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:30,620 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-19 23:28:31,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:31,896 INFO L93 Difference]: Finished difference Result 670 states and 1201 transitions. [2020-10-19 23:28:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:31,899 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-10-19 23:28:31,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:31,918 INFO L225 Difference]: With dead ends: 670 [2020-10-19 23:28:31,918 INFO L226 Difference]: Without dead ends: 360 [2020-10-19 23:28:31,924 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 [2020-10-19 23:28:31,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-19 23:28:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-19 23:28:31,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-19 23:28:32,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 588 transitions. [2020-10-19 23:28:32,003 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 588 transitions. Word has length 43 [2020-10-19 23:28:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:32,004 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 588 transitions. [2020-10-19 23:28:32,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:32,004 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 588 transitions. [2020-10-19 23:28:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-19 23:28:32,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:32,009 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:28:32,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 23:28:32,010 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:32,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:32,011 INFO L82 PathProgramCache]: Analyzing trace with hash 321810028, now seen corresponding path program 1 times [2020-10-19 23:28:32,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:32,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539373788] [2020-10-19 23:28:32,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:32,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539373788] [2020-10-19 23:28:32,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:32,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 23:28:32,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98651839] [2020-10-19 23:28:32,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:32,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:32,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:32,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:32,255 INFO L87 Difference]: Start difference. First operand 360 states and 588 transitions. Second operand 3 states. [2020-10-19 23:28:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:33,259 INFO L93 Difference]: Finished difference Result 1074 states and 1759 transitions. [2020-10-19 23:28:33,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:33,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-10-19 23:28:33,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:33,269 INFO L225 Difference]: With dead ends: 1074 [2020-10-19 23:28:33,269 INFO L226 Difference]: Without dead ends: 716 [2020-10-19 23:28:33,271 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 [2020-10-19 23:28:33,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-19 23:28:33,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 538. [2020-10-19 23:28:33,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-10-19 23:28:33,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 802 transitions. [2020-10-19 23:28:33,303 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 802 transitions. Word has length 108 [2020-10-19 23:28:33,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:33,304 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 802 transitions. [2020-10-19 23:28:33,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:33,304 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 802 transitions. [2020-10-19 23:28:33,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-19 23:28:33,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:33,308 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 23:28:33,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 23:28:33,309 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:33,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:33,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1799247215, now seen corresponding path program 1 times [2020-10-19 23:28:33,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:33,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508917371] [2020-10-19 23:28:33,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:33,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508917371] [2020-10-19 23:28:33,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:33,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:33,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197554316] [2020-10-19 23:28:33,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:28:33,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:33,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:28:33,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:28:33,558 INFO L87 Difference]: Start difference. First operand 538 states and 802 transitions. Second operand 4 states. [2020-10-19 23:28:34,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:34,994 INFO L93 Difference]: Finished difference Result 1430 states and 2030 transitions. [2020-10-19 23:28:34,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:28:34,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-10-19 23:28:34,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:35,001 INFO L225 Difference]: With dead ends: 1430 [2020-10-19 23:28:35,001 INFO L226 Difference]: Without dead ends: 894 [2020-10-19 23:28:35,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-10-19 23:28:35,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2020-10-19 23:28:35,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-19 23:28:35,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-10-19 23:28:35,033 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 122 [2020-10-19 23:28:35,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:35,034 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-10-19 23:28:35,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:28:35,034 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-10-19 23:28:35,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-10-19 23:28:35,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:35,040 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:35,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 23:28:35,041 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:35,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:35,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1337004674, now seen corresponding path program 1 times [2020-10-19 23:28:35,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:35,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543514103] [2020-10-19 23:28:35,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-19 23:28:35,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543514103] [2020-10-19 23:28:35,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:35,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:35,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010052912] [2020-10-19 23:28:35,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:28:35,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:35,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:28:35,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:28:35,351 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2020-10-19 23:28:36,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:36,414 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2020-10-19 23:28:36,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:28:36,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 202 [2020-10-19 23:28:36,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:36,421 INFO L225 Difference]: With dead ends: 1993 [2020-10-19 23:28:36,421 INFO L226 Difference]: Without dead ends: 1072 [2020-10-19 23:28:36,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:28:36,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-10-19 23:28:36,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-10-19 23:28:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-19 23:28:36,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-10-19 23:28:36,449 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 202 [2020-10-19 23:28:36,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:36,451 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-10-19 23:28:36,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:28:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-10-19 23:28:36,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-10-19 23:28:36,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:36,456 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:36,457 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 23:28:36,457 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:36,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:36,457 INFO L82 PathProgramCache]: Analyzing trace with hash -232137922, now seen corresponding path program 1 times [2020-10-19 23:28:36,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:36,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728271703] [2020-10-19 23:28:36,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:36,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728271703] [2020-10-19 23:28:36,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537550216] [2020-10-19 23:28:36,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:37,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:37,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:37,373 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-19 23:28:37,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:37,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-19 23:28:37,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157488240] [2020-10-19 23:28:37,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:37,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:37,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:37,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:28:37,377 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-10-19 23:28:38,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:38,329 INFO L93 Difference]: Finished difference Result 2320 states and 2779 transitions. [2020-10-19 23:28:38,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:38,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-10-19 23:28:38,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:38,336 INFO L225 Difference]: With dead ends: 2320 [2020-10-19 23:28:38,337 INFO L226 Difference]: Without dead ends: 1250 [2020-10-19 23:28:38,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-19 23:28:38,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-19 23:28:38,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1072. [2020-10-19 23:28:38,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-19 23:28:38,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1250 transitions. [2020-10-19 23:28:38,364 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1250 transitions. Word has length 214 [2020-10-19 23:28:38,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:38,365 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1250 transitions. [2020-10-19 23:28:38,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:38,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1250 transitions. [2020-10-19 23:28:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-19 23:28:38,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:38,369 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:38,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:38,583 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:38,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:38,583 INFO L82 PathProgramCache]: Analyzing trace with hash -601156121, now seen corresponding path program 1 times [2020-10-19 23:28:38,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:38,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520624251] [2020-10-19 23:28:38,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 23:28:38,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520624251] [2020-10-19 23:28:38,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:38,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:38,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449041560] [2020-10-19 23:28:38,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:38,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:38,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:38,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:38,828 INFO L87 Difference]: Start difference. First operand 1072 states and 1250 transitions. Second operand 3 states. [2020-10-19 23:28:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:39,745 INFO L93 Difference]: Finished difference Result 2854 states and 3362 transitions. [2020-10-19 23:28:39,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:39,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-10-19 23:28:39,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:39,757 INFO L225 Difference]: With dead ends: 2854 [2020-10-19 23:28:39,757 INFO L226 Difference]: Without dead ends: 1784 [2020-10-19 23:28:39,760 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 [2020-10-19 23:28:39,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2020-10-19 23:28:39,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 1784. [2020-10-19 23:28:39,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-19 23:28:39,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2013 transitions. [2020-10-19 23:28:39,809 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2013 transitions. Word has length 217 [2020-10-19 23:28:39,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:39,810 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2013 transitions. [2020-10-19 23:28:39,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:39,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2013 transitions. [2020-10-19 23:28:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-19 23:28:39,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:39,822 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:39,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 23:28:39,823 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:39,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:39,823 INFO L82 PathProgramCache]: Analyzing trace with hash -768008881, now seen corresponding path program 1 times [2020-10-19 23:28:39,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:39,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71140832] [2020-10-19 23:28:39,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:40,418 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2020-10-19 23:28:40,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71140832] [2020-10-19 23:28:40,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:40,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:40,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122469097] [2020-10-19 23:28:40,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 23:28:40,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:40,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 23:28:40,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:28:40,422 INFO L87 Difference]: Start difference. First operand 1784 states and 2013 transitions. Second operand 4 states. [2020-10-19 23:28:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:41,480 INFO L93 Difference]: Finished difference Result 3624 states and 4105 transitions. [2020-10-19 23:28:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 23:28:41,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 334 [2020-10-19 23:28:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:41,492 INFO L225 Difference]: With dead ends: 3624 [2020-10-19 23:28:41,492 INFO L226 Difference]: Without dead ends: 1962 [2020-10-19 23:28:41,495 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 23:28:41,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2020-10-19 23:28:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2020-10-19 23:28:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-10-19 23:28:41,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1934 transitions. [2020-10-19 23:28:41,541 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1934 transitions. Word has length 334 [2020-10-19 23:28:41,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:41,543 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 1934 transitions. [2020-10-19 23:28:41,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 23:28:41,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1934 transitions. [2020-10-19 23:28:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2020-10-19 23:28:41,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:41,551 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:41,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 23:28:41,552 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:41,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:41,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1751796249, now seen corresponding path program 1 times [2020-10-19 23:28:41,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:41,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430404506] [2020-10-19 23:28:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:42,151 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:28:42,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430404506] [2020-10-19 23:28:42,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:42,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:42,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233935773] [2020-10-19 23:28:42,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:42,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:42,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:42,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:42,155 INFO L87 Difference]: Start difference. First operand 1784 states and 1934 transitions. Second operand 3 states. [2020-10-19 23:28:42,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:42,988 INFO L93 Difference]: Finished difference Result 4278 states and 4675 transitions. [2020-10-19 23:28:42,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:42,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 429 [2020-10-19 23:28:42,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:43,002 INFO L225 Difference]: With dead ends: 4278 [2020-10-19 23:28:43,003 INFO L226 Difference]: Without dead ends: 2674 [2020-10-19 23:28:43,006 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 [2020-10-19 23:28:43,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-19 23:28:43,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2140. [2020-10-19 23:28:43,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-10-19 23:28:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2293 transitions. [2020-10-19 23:28:43,064 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2293 transitions. Word has length 429 [2020-10-19 23:28:43,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:43,066 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2293 transitions. [2020-10-19 23:28:43,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2293 transitions. [2020-10-19 23:28:43,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2020-10-19 23:28:43,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:43,076 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:43,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 23:28:43,077 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:43,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1536610928, now seen corresponding path program 1 times [2020-10-19 23:28:43,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:43,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619730842] [2020-10-19 23:28:43,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:28:43,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619730842] [2020-10-19 23:28:43,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:43,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:43,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398998784] [2020-10-19 23:28:43,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:43,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:43,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:43,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:43,507 INFO L87 Difference]: Start difference. First operand 2140 states and 2293 transitions. Second operand 3 states. [2020-10-19 23:28:44,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:44,328 INFO L93 Difference]: Finished difference Result 4634 states and 5045 transitions. [2020-10-19 23:28:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:44,329 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 436 [2020-10-19 23:28:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:44,347 INFO L225 Difference]: With dead ends: 4634 [2020-10-19 23:28:44,347 INFO L226 Difference]: Without dead ends: 2674 [2020-10-19 23:28:44,351 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 [2020-10-19 23:28:44,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-10-19 23:28:44,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2496. [2020-10-19 23:28:44,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-19 23:28:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2662 transitions. [2020-10-19 23:28:44,425 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2662 transitions. Word has length 436 [2020-10-19 23:28:44,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:44,426 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2662 transitions. [2020-10-19 23:28:44,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:44,427 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2662 transitions. [2020-10-19 23:28:44,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2020-10-19 23:28:44,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:44,448 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:44,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 23:28:44,449 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:44,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:44,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1506184816, now seen corresponding path program 1 times [2020-10-19 23:28:44,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:44,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481880820] [2020-10-19 23:28:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:45,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-10-19 23:28:45,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481880820] [2020-10-19 23:28:45,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:45,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:45,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106716162] [2020-10-19 23:28:45,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:45,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:45,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:45,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:45,024 INFO L87 Difference]: Start difference. First operand 2496 states and 2662 transitions. Second operand 3 states. [2020-10-19 23:28:45,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:45,819 INFO L93 Difference]: Finished difference Result 5524 states and 5973 transitions. [2020-10-19 23:28:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:45,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 591 [2020-10-19 23:28:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:45,835 INFO L225 Difference]: With dead ends: 5524 [2020-10-19 23:28:45,835 INFO L226 Difference]: Without dead ends: 3208 [2020-10-19 23:28:45,838 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 [2020-10-19 23:28:45,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-10-19 23:28:45,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2020-10-19 23:28:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-19 23:28:45,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3228 transitions. [2020-10-19 23:28:45,901 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3228 transitions. Word has length 591 [2020-10-19 23:28:45,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:45,902 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3228 transitions. [2020-10-19 23:28:45,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:45,902 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3228 transitions. [2020-10-19 23:28:45,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2020-10-19 23:28:45,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:45,914 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:45,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 23:28:45,915 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:45,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:45,915 INFO L82 PathProgramCache]: Analyzing trace with hash -312113725, now seen corresponding path program 1 times [2020-10-19 23:28:45,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:45,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609698570] [2020-10-19 23:28:45,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1116 backedges. 761 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2020-10-19 23:28:46,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609698570] [2020-10-19 23:28:46,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 23:28:46,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 23:28:46,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921399910] [2020-10-19 23:28:46,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:46,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:46,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:46,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 23:28:46,763 INFO L87 Difference]: Start difference. First operand 3030 states and 3228 transitions. Second operand 3 states. [2020-10-19 23:28:47,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:47,504 INFO L93 Difference]: Finished difference Result 6592 states and 7097 transitions. [2020-10-19 23:28:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:47,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 609 [2020-10-19 23:28:47,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:47,523 INFO L225 Difference]: With dead ends: 6592 [2020-10-19 23:28:47,523 INFO L226 Difference]: Without dead ends: 3742 [2020-10-19 23:28:47,528 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 [2020-10-19 23:28:47,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2020-10-19 23:28:47,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3386. [2020-10-19 23:28:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:28:47,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3621 transitions. [2020-10-19 23:28:47,604 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3621 transitions. Word has length 609 [2020-10-19 23:28:47,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:47,605 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3621 transitions. [2020-10-19 23:28:47,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:47,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3621 transitions. [2020-10-19 23:28:47,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2020-10-19 23:28:47,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:47,621 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:47,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 23:28:47,621 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:47,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1979928893, now seen corresponding path program 1 times [2020-10-19 23:28:47,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:47,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564950879] [2020-10-19 23:28:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:48,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 847 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-19 23:28:48,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564950879] [2020-10-19 23:28:48,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488962375] [2020-10-19 23:28:48,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:48,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:48,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:48,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-10-19 23:28:48,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:48,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:28:48,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145342602] [2020-10-19 23:28:48,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:48,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:48,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:48,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:48,666 INFO L87 Difference]: Start difference. First operand 3386 states and 3621 transitions. Second operand 3 states. [2020-10-19 23:28:49,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:49,313 INFO L93 Difference]: Finished difference Result 7660 states and 8181 transitions. [2020-10-19 23:28:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:49,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 632 [2020-10-19 23:28:49,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:49,330 INFO L225 Difference]: With dead ends: 7660 [2020-10-19 23:28:49,330 INFO L226 Difference]: Without dead ends: 3564 [2020-10-19 23:28:49,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2020-10-19 23:28:49,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3386. [2020-10-19 23:28:49,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:28:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3600 transitions. [2020-10-19 23:28:49,391 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3600 transitions. Word has length 632 [2020-10-19 23:28:49,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:49,392 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3600 transitions. [2020-10-19 23:28:49,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3600 transitions. [2020-10-19 23:28:49,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2020-10-19 23:28:49,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:49,402 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:49,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-19 23:28:49,617 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:49,618 INFO L82 PathProgramCache]: Analyzing trace with hash 207404911, now seen corresponding path program 1 times [2020-10-19 23:28:49,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:49,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110697565] [2020-10-19 23:28:49,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:50,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 1259 proven. 155 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2020-10-19 23:28:50,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110697565] [2020-10-19 23:28:50,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633271077] [2020-10-19 23:28:50,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:50,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:50,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:50,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-10-19 23:28:50,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:50,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:28:50,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464431405] [2020-10-19 23:28:50,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:50,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:50,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:50,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:50,959 INFO L87 Difference]: Start difference. First operand 3386 states and 3600 transitions. Second operand 3 states. [2020-10-19 23:28:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:51,726 INFO L93 Difference]: Finished difference Result 4278 states and 4538 transitions. [2020-10-19 23:28:51,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:51,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 779 [2020-10-19 23:28:51,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:51,754 INFO L225 Difference]: With dead ends: 4278 [2020-10-19 23:28:51,754 INFO L226 Difference]: Without dead ends: 4276 [2020-10-19 23:28:51,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 779 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-10-19 23:28:51,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3386. [2020-10-19 23:28:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2020-10-19 23:28:51,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3599 transitions. [2020-10-19 23:28:51,851 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3599 transitions. Word has length 779 [2020-10-19 23:28:51,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:51,853 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 3599 transitions. [2020-10-19 23:28:51,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:51,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3599 transitions. [2020-10-19 23:28:51,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2020-10-19 23:28:51,873 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 23:28:51,874 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 23:28:52,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-19 23:28:52,088 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 23:28:52,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 23:28:52,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1373240018, now seen corresponding path program 1 times [2020-10-19 23:28:52,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 23:28:52,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443764148] [2020-10-19 23:28:52,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 23:28:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2306 backedges. 1730 proven. 110 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2020-10-19 23:28:52,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443764148] [2020-10-19 23:28:52,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154494796] [2020-10-19 23:28:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 23:28:53,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 23:28:53,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 23:28:53,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2306 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-19 23:28:53,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 23:28:53,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 23:28:53,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087295050] [2020-10-19 23:28:53,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 23:28:53,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 23:28:53,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 23:28:53,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:53,700 INFO L87 Difference]: Start difference. First operand 3386 states and 3599 transitions. Second operand 3 states. [2020-10-19 23:28:54,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 23:28:54,584 INFO L93 Difference]: Finished difference Result 7302 states and 7812 transitions. [2020-10-19 23:28:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 23:28:54,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 810 [2020-10-19 23:28:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 23:28:54,587 INFO L225 Difference]: With dead ends: 7302 [2020-10-19 23:28:54,587 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 23:28:54,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 813 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 23:28:54,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 23:28:54,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 23:28:54,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 23:28:54,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 23:28:54,595 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 810 [2020-10-19 23:28:54,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 23:28:54,595 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 23:28:54,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 23:28:54,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 23:28:54,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 23:28:54,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 23:28:54,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 23:28:55,101 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-19 23:28:55,250 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,254 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-19 23:28:55,255 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-19 23:28:55,256 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-19 23:28:55,257 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-19 23:28:55,258 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-19 23:28:55,259 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-19 23:28:55,259 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-19 23:28:55,259 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,261 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,261 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,261 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-19 23:28:55,261 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-19 23:28:55,261 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-19 23:28:55,261 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-19 23:28:55,262 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-19 23:28:55,263 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-19 23:28:55,264 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-19 23:28:55,264 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-19 23:28:55,264 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-19 23:28:55,264 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-19 23:28:55,264 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-19 23:28:55,264 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-19 23:28:55,265 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-19 23:28:55,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-19 23:28:55,267 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-19 23:28:55,268 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-19 23:28:55,268 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-19 23:28:55,268 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,268 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,268 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,268 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-19 23:28:55,268 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-19 23:28:55,269 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-19 23:28:55,269 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-19 23:28:55,269 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-19 23:28:55,269 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-19 23:28:55,269 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-19 23:28:55,271 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-19 23:28:55,271 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,271 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,271 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,271 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 23:28:55,272 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 23:28:55,272 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-19 23:28:55,272 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-19 23:28:55,272 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-19 23:28:55,272 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-19 23:28:55,272 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-19 23:28:55,273 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-19 23:28:55,273 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-19 23:28:55,273 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-19 23:28:55,273 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,274 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,274 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,274 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-19 23:28:55,274 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-19 23:28:55,274 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-19 23:28:55,275 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-19 23:28:55,275 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-19 23:28:55,275 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-19 23:28:55,275 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 23:28:55,275 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-19 23:28:55,276 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-19 23:28:55,276 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,276 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,276 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,276 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-19 23:28:55,276 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-19 23:28:55,277 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-19 23:28:55,277 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-19 23:28:55,277 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-19 23:28:55,277 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-19 23:28:55,277 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-19 23:28:55,277 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-19 23:28:55,277 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,278 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,278 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-19 23:28:55,278 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-19 23:28:55,278 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-19 23:28:55,278 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-19 23:28:55,278 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-19 23:28:55,279 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-19 23:28:55,279 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-19 23:28:55,279 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-19 23:28:55,279 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,279 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,280 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-19 23:28:55,280 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-19 23:28:55,280 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-19 23:28:55,280 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-19 23:28:55,280 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-19 23:28:55,280 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-19 23:28:55,281 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,281 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,281 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse3 (<= (+ ~a12~0 49) 0)) (.cse2 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse0 .cse3) (and (<= 9 ~a21~0) .cse1 (<= ~a21~0 9)) (and (< 0 (+ ~a12~0 43)) (<= ~a12~0 11) .cse1) (and .cse3 .cse2 (<= ~a15~0 8) (<= 10 ~a21~0)) (and .cse1 (<= ~a21~0 6)) (and (<= 8 ~a21~0) .cse1 (<= ~a21~0 8)))) [2020-10-19 23:28:55,282 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-19 23:28:55,282 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-19 23:28:55,282 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-19 23:28:55,282 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-19 23:28:55,282 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-19 23:28:55,282 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-19 23:28:55,283 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-19 23:28:55,283 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-19 23:28:55,283 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,283 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,283 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-19 23:28:55,284 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-19 23:28:55,284 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-19 23:28:55,284 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-19 23:28:55,284 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-19 23:28:55,284 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-19 23:28:55,284 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-19 23:28:55,285 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-19 23:28:55,285 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 23:28:55,285 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,285 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,285 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-19 23:28:55,285 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-19 23:28:55,286 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-19 23:28:55,286 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-19 23:28:55,286 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-19 23:28:55,286 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-19 23:28:55,286 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,287 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,287 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-19 23:28:55,287 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,287 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-19 23:28:55,288 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse0 (<= ~a15~0 5)) (.cse3 (<= (+ ~a12~0 49) 0)) (.cse2 (<= 7 ~a15~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and .cse0 .cse3) (and (<= 9 ~a21~0) .cse1 (<= ~a21~0 9)) (and (< 0 (+ ~a12~0 43)) (<= ~a12~0 11) .cse1) (and .cse3 .cse2 (<= ~a15~0 8) (<= 10 ~a21~0)) (and .cse1 (<= ~a21~0 6)) (and (<= 8 ~a21~0) .cse1 (<= ~a21~0 8)))) [2020-10-19 23:28:55,288 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-19 23:28:55,288 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-19 23:28:55,288 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-19 23:28:55,288 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-19 23:28:55,289 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-19 23:28:55,289 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-19 23:28:55,289 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-19 23:28:55,289 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-19 23:28:55,289 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-19 23:28:55,289 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,290 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,290 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,290 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-19 23:28:55,290 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-19 23:28:55,290 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-19 23:28:55,290 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-19 23:28:55,291 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-19 23:28:55,291 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 23:28:55,291 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-19 23:28:55,291 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-19 23:28:55,291 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-19 23:28:55,292 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-19 23:28:55,292 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,292 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,292 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,292 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-19 23:28:55,292 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-19 23:28:55,292 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-19 23:28:55,293 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 23:28:55,293 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-19 23:28:55,293 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-19 23:28:55,293 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-19 23:28:55,293 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-19 23:28:55,294 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,294 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,294 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,294 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-19 23:28:55,294 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-19 23:28:55,294 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-19 23:28:55,295 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-19 23:28:55,295 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-19 23:28:55,295 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-19 23:28:55,295 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-19 23:28:55,295 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-19 23:28:55,295 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-19 23:28:55,296 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,296 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,297 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-19 23:28:55,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 11:28:55 BoogieIcfgContainer [2020-10-19 23:28:55,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 23:28:55,343 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 23:28:55,343 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 23:28:55,343 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 23:28:55,344 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 11:28:30" (3/4) ... [2020-10-19 23:28:55,347 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 23:28:55,371 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 23:28:55,373 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 23:28:55,374 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:28:55,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 23:28:55,555 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 23:28:55,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 23:28:55,557 INFO L168 Benchmark]: Toolchain (without parser) took 28264.47 ms. Allocated memory was 34.1 MB in the beginning and 509.6 MB in the end (delta: 475.5 MB). Free memory was 13.5 MB in the beginning and 60.5 MB in the end (delta: -46.9 MB). Peak memory consumption was 428.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:55,558 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 32.5 MB. Free memory was 9.9 MB in the beginning and 9.8 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-19 23:28:55,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 856.76 ms. Allocated memory was 34.1 MB in the beginning and 43.0 MB in the end (delta: 8.9 MB). Free memory was 12.7 MB in the beginning and 14.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:55,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.72 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 14.6 MB in the beginning and 20.1 MB in the end (delta: -5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:55,559 INFO L168 Benchmark]: Boogie Preprocessor took 100.36 ms. Allocated memory is still 45.1 MB. Free memory was 20.1 MB in the beginning and 13.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:55,560 INFO L168 Benchmark]: RCFGBuilder took 1789.65 ms. Allocated memory was 45.1 MB in the beginning and 70.3 MB in the end (delta: 25.2 MB). Free memory was 13.3 MB in the beginning and 30.4 MB in the end (delta: -17.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:55,560 INFO L168 Benchmark]: TraceAbstraction took 25160.06 ms. Allocated memory was 70.3 MB in the beginning and 509.6 MB in the end (delta: 439.4 MB). Free memory was 30.4 MB in the beginning and 85.1 MB in the end (delta: -54.8 MB). Peak memory consumption was 384.6 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:55,560 INFO L168 Benchmark]: Witness Printer took 212.53 ms. Allocated memory is still 509.6 MB. Free memory was 85.1 MB in the beginning and 60.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.3 GB. [2020-10-19 23:28:55,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 32.5 MB. Free memory was 9.9 MB in the beginning and 9.8 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 856.76 ms. Allocated memory was 34.1 MB in the beginning and 43.0 MB in the end (delta: 8.9 MB). Free memory was 12.7 MB in the beginning and 14.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 130.72 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 14.6 MB in the beginning and 20.1 MB in the end (delta: -5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 100.36 ms. Allocated memory is still 45.1 MB. Free memory was 20.1 MB in the beginning and 13.3 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1789.65 ms. Allocated memory was 45.1 MB in the beginning and 70.3 MB in the end (delta: 25.2 MB). Free memory was 13.3 MB in the beginning and 30.4 MB in the end (delta: -17.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 25160.06 ms. Allocated memory was 70.3 MB in the beginning and 509.6 MB in the end (delta: 439.4 MB). Free memory was 30.4 MB in the beginning and 85.1 MB in the end (delta: -54.8 MB). Peak memory consumption was 384.6 MB. Max. memory is 14.3 GB. * Witness Printer took 212.53 ms. Allocated memory is still 509.6 MB. Free memory was 85.1 MB in the beginning and 60.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 14.3 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: 22]: Loop Invariant Derived loop invariant: (((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (a15 <= 5 && a12 + 49 <= 0)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || ((0 < a12 + 43 && a12 <= 11) && a24 == 1)) || (((a12 + 49 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a21 <= 6)) || ((8 <= a21 && a24 == 1) && a21 <= 8) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (a15 <= 5 && a12 + 49 <= 0)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || ((0 < a12 + 43 && a12 <= 11) && a24 == 1)) || (((a12 + 49 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a24 == 1 && a21 <= 6)) || ((8 <= a21 && a24 == 1) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.5s, OverallIterations: 14, TraceHistogramMax: 8, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1910 SDtfs, 1944 SDslu, 77 SDs, 0 SdLazy, 7204 SolverSat, 907 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2476 GetRequests, 2449 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3386occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 2848 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 157 HoareAnnotationTreeSize, 3 FomulaSimplifications, 2626 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 322 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 7961 NumberOfCodeBlocks, 7961 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 7943 ConstructedInterpolants, 0 QuantifiedInterpolants, 8648420 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3163 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 14915/15355 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...