./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label06.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label06.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 8b6c9f347d5e230b98d0547c639c6a2b187b23e6 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 20:28:06,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:28:06,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:28:06,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:28:06,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:28:06,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:28:06,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:28:06,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:28:06,218 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:28:06,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:28:06,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:28:06,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:28:06,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:28:06,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:28:06,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:28:06,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:28:06,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:28:06,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:28:06,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:28:06,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:28:06,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:28:06,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:28:06,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:28:06,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:28:06,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:28:06,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:28:06,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:28:06,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:28:06,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:28:06,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:28:06,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:28:06,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:28:06,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:28:06,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:28:06,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:28:06,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:28:06,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:28:06,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:28:06,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:28:06,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:28:06,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:28:06,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:28:06,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:28:06,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:28:06,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:28:06,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:28:06,351 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:28:06,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:28:06,352 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:28:06,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:28:06,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:28:06,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:28:06,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:28:06,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:28:06,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:28:06,355 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:28:06,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:28:06,355 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:28:06,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:28:06,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:28:06,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:28:06,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:28:06,357 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:28:06,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:28:06,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:28:06,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:28:06,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:28:06,358 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:28:06,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:28:06,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:28:06,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:28:06,359 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b6c9f347d5e230b98d0547c639c6a2b187b23e6 [2020-10-25 20:28:06,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:28:06,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:28:06,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:28:06,797 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:28:06,803 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:28:06,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label06.c [2020-10-25 20:28:06,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e80a3bb/a79925251820454dad75d9ccb037ec8f/FLAG38821d2e5 [2020-10-25 20:28:07,833 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:28:07,835 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label06.c [2020-10-25 20:28:07,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e80a3bb/a79925251820454dad75d9ccb037ec8f/FLAG38821d2e5 [2020-10-25 20:28:07,938 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79e80a3bb/a79925251820454dad75d9ccb037ec8f [2020-10-25 20:28:07,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:28:07,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:28:07,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:28:07,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:28:07,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:28:07,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:28:07" (1/1) ... [2020-10-25 20:28:07,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e0cc49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:07, skipping insertion in model container [2020-10-25 20:28:07,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:28:07" (1/1) ... [2020-10-25 20:28:07,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:28:08,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:28:08,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:28:08,609 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:28:08,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:28:08,839 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:28:08,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08 WrapperNode [2020-10-25 20:28:08,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:28:08,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:28:08,843 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:28:08,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:28:08,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:08,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:09,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:28:09,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:28:09,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:28:09,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:28:09,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:09,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:09,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:09,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:09,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:09,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:09,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... [2020-10-25 20:28:09,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:28:09,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:28:09,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:28:09,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:28:09,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:28:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:28:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:28:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:28:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:28:11,344 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:28:11,345 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:28:11,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:28:11 BoogieIcfgContainer [2020-10-25 20:28:11,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:28:11,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:28:11,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:28:11,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:28:11,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:28:07" (1/3) ... [2020-10-25 20:28:11,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108a527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:28:11, skipping insertion in model container [2020-10-25 20:28:11,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:28:08" (2/3) ... [2020-10-25 20:28:11,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108a527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:28:11, skipping insertion in model container [2020-10-25 20:28:11,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:28:11" (3/3) ... [2020-10-25 20:28:11,358 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label06.c [2020-10-25 20:28:11,371 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:28:11,377 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:28:11,392 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:28:11,423 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:28:11,424 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:28:11,424 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:28:11,424 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:28:11,425 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:28:11,425 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:28:11,425 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:28:11,425 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:28:11,448 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-10-25 20:28:11,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-25 20:28:11,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:11,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:28:11,464 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:11,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:11,473 INFO L82 PathProgramCache]: Analyzing trace with hash -696204111, now seen corresponding path program 1 times [2020-10-25 20:28:11,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:11,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046053572] [2020-10-25 20:28:11,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:11,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:28:11,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046053572] [2020-10-25 20:28:11,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:11,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:28:11,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344091802] [2020-10-25 20:28:11,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:11,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:11,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:11,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:11,949 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-10-25 20:28:13,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:13,559 INFO L93 Difference]: Finished difference Result 770 states and 1361 transitions. [2020-10-25 20:28:13,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:13,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-10-25 20:28:13,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:13,579 INFO L225 Difference]: With dead ends: 770 [2020-10-25 20:28:13,580 INFO L226 Difference]: Without dead ends: 422 [2020-10-25 20:28:13,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:13,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-10-25 20:28:13,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2020-10-25 20:28:13,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-10-25 20:28:13,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2020-10-25 20:28:13,700 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 63 [2020-10-25 20:28:13,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:13,701 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2020-10-25 20:28:13,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:13,703 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2020-10-25 20:28:13,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-25 20:28:13,717 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:13,718 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, 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] [2020-10-25 20:28:13,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:28:13,719 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:13,721 INFO L82 PathProgramCache]: Analyzing trace with hash -269381167, now seen corresponding path program 1 times [2020-10-25 20:28:13,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:13,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631418250] [2020-10-25 20:28:13,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:28:14,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631418250] [2020-10-25 20:28:14,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:14,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:28:14,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205732849] [2020-10-25 20:28:14,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:14,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:14,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:14,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:14,007 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand 3 states. [2020-10-25 20:28:15,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:15,577 INFO L93 Difference]: Finished difference Result 1199 states and 1829 transitions. [2020-10-25 20:28:15,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:15,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-10-25 20:28:15,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:15,585 INFO L225 Difference]: With dead ends: 1199 [2020-10-25 20:28:15,585 INFO L226 Difference]: Without dead ends: 789 [2020-10-25 20:28:15,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:15,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-10-25 20:28:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2020-10-25 20:28:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2020-10-25 20:28:15,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2020-10-25 20:28:15,638 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 129 [2020-10-25 20:28:15,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:15,639 INFO L481 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2020-10-25 20:28:15,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:15,639 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2020-10-25 20:28:15,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-25 20:28:15,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:15,642 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, 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] [2020-10-25 20:28:15,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 20:28:15,643 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:15,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:15,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1370181851, now seen corresponding path program 1 times [2020-10-25 20:28:15,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:15,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641178286] [2020-10-25 20:28:15,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:15,805 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:28:15,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641178286] [2020-10-25 20:28:15,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:15,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:28:15,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142865531] [2020-10-25 20:28:15,807 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:15,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:15,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:15,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:15,809 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand 3 states. [2020-10-25 20:28:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:17,251 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2020-10-25 20:28:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:17,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-10-25 20:28:17,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:17,261 INFO L225 Difference]: With dead ends: 2314 [2020-10-25 20:28:17,261 INFO L226 Difference]: Without dead ends: 1527 [2020-10-25 20:28:17,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:17,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2020-10-25 20:28:17,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2020-10-25 20:28:17,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1526 states. [2020-10-25 20:28:17,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1856 transitions. [2020-10-25 20:28:17,302 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1856 transitions. Word has length 133 [2020-10-25 20:28:17,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:17,307 INFO L481 AbstractCegarLoop]: Abstraction has 1526 states and 1856 transitions. [2020-10-25 20:28:17,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:17,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1856 transitions. [2020-10-25 20:28:17,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-10-25 20:28:17,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:17,312 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:28:17,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 20:28:17,314 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:17,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:17,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1160293443, now seen corresponding path program 1 times [2020-10-25 20:28:17,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:17,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540490065] [2020-10-25 20:28:17,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:28:17,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540490065] [2020-10-25 20:28:17,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:17,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:17,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584975138] [2020-10-25 20:28:17,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:17,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:17,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:17,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:17,641 INFO L87 Difference]: Start difference. First operand 1526 states and 1856 transitions. Second operand 3 states. [2020-10-25 20:28:19,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:19,046 INFO L93 Difference]: Finished difference Result 3614 states and 4469 transitions. [2020-10-25 20:28:19,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:19,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-10-25 20:28:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:19,065 INFO L225 Difference]: With dead ends: 3614 [2020-10-25 20:28:19,066 INFO L226 Difference]: Without dead ends: 2274 [2020-10-25 20:28:19,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:19,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-10-25 20:28:19,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 1897. [2020-10-25 20:28:19,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1897 states. [2020-10-25 20:28:19,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2305 transitions. [2020-10-25 20:28:19,125 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2305 transitions. Word has length 190 [2020-10-25 20:28:19,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:19,129 INFO L481 AbstractCegarLoop]: Abstraction has 1897 states and 2305 transitions. [2020-10-25 20:28:19,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:19,129 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2305 transitions. [2020-10-25 20:28:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-25 20:28:19,134 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:19,135 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:28:19,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:28:19,136 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:19,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:19,136 INFO L82 PathProgramCache]: Analyzing trace with hash 66916988, now seen corresponding path program 1 times [2020-10-25 20:28:19,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:19,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895461156] [2020-10-25 20:28:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-25 20:28:19,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895461156] [2020-10-25 20:28:19,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:19,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:19,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055275372] [2020-10-25 20:28:19,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:19,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:19,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:19,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:19,466 INFO L87 Difference]: Start difference. First operand 1897 states and 2305 transitions. Second operand 3 states. [2020-10-25 20:28:21,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:21,007 INFO L93 Difference]: Finished difference Result 4538 states and 5618 transitions. [2020-10-25 20:28:21,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:21,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2020-10-25 20:28:21,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:21,021 INFO L225 Difference]: With dead ends: 4538 [2020-10-25 20:28:21,021 INFO L226 Difference]: Without dead ends: 2643 [2020-10-25 20:28:21,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2020-10-25 20:28:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 2458. [2020-10-25 20:28:21,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2458 states. [2020-10-25 20:28:21,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3014 transitions. [2020-10-25 20:28:21,076 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3014 transitions. Word has length 245 [2020-10-25 20:28:21,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:21,077 INFO L481 AbstractCegarLoop]: Abstraction has 2458 states and 3014 transitions. [2020-10-25 20:28:21,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:21,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3014 transitions. [2020-10-25 20:28:21,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-10-25 20:28:21,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:21,084 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:28:21,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 20:28:21,084 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:21,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:21,085 INFO L82 PathProgramCache]: Analyzing trace with hash 984282580, now seen corresponding path program 1 times [2020-10-25 20:28:21,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:21,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970245308] [2020-10-25 20:28:21,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-10-25 20:28:21,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970245308] [2020-10-25 20:28:21,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:21,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:21,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956138535] [2020-10-25 20:28:21,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:21,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:21,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:21,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:21,347 INFO L87 Difference]: Start difference. First operand 2458 states and 3014 transitions. Second operand 3 states. [2020-10-25 20:28:22,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:22,976 INFO L93 Difference]: Finished difference Result 5656 states and 7022 transitions. [2020-10-25 20:28:22,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:22,977 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 282 [2020-10-25 20:28:22,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:22,994 INFO L225 Difference]: With dead ends: 5656 [2020-10-25 20:28:22,994 INFO L226 Difference]: Without dead ends: 3200 [2020-10-25 20:28:22,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:23,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2020-10-25 20:28:23,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 3193. [2020-10-25 20:28:23,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3193 states. [2020-10-25 20:28:23,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3193 states to 3193 states and 3856 transitions. [2020-10-25 20:28:23,065 INFO L78 Accepts]: Start accepts. Automaton has 3193 states and 3856 transitions. Word has length 282 [2020-10-25 20:28:23,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:23,065 INFO L481 AbstractCegarLoop]: Abstraction has 3193 states and 3856 transitions. [2020-10-25 20:28:23,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:23,066 INFO L276 IsEmpty]: Start isEmpty. Operand 3193 states and 3856 transitions. [2020-10-25 20:28:23,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-25 20:28:23,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:23,075 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, 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, 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] [2020-10-25 20:28:23,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 20:28:23,075 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:23,076 INFO L82 PathProgramCache]: Analyzing trace with hash 109681797, now seen corresponding path program 1 times [2020-10-25 20:28:23,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:23,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239133555] [2020-10-25 20:28:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:28:23,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239133555] [2020-10-25 20:28:23,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:23,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:23,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999274328] [2020-10-25 20:28:23,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:28:23,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:23,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:28:23,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:28:23,449 INFO L87 Difference]: Start difference. First operand 3193 states and 3856 transitions. Second operand 4 states. [2020-10-25 20:28:25,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:25,819 INFO L93 Difference]: Finished difference Result 9727 states and 11990 transitions. [2020-10-25 20:28:25,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:28:25,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 323 [2020-10-25 20:28:25,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:25,857 INFO L225 Difference]: With dead ends: 9727 [2020-10-25 20:28:25,858 INFO L226 Difference]: Without dead ends: 6536 [2020-10-25 20:28:25,864 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 [2020-10-25 20:28:25,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6536 states. [2020-10-25 20:28:26,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6536 to 6533. [2020-10-25 20:28:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6533 states. [2020-10-25 20:28:26,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6533 states to 6533 states and 7982 transitions. [2020-10-25 20:28:26,038 INFO L78 Accepts]: Start accepts. Automaton has 6533 states and 7982 transitions. Word has length 323 [2020-10-25 20:28:26,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:26,039 INFO L481 AbstractCegarLoop]: Abstraction has 6533 states and 7982 transitions. [2020-10-25 20:28:26,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:28:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand 6533 states and 7982 transitions. [2020-10-25 20:28:26,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2020-10-25 20:28:26,115 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:26,116 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, 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, 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] [2020-10-25 20:28:26,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 20:28:26,116 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:26,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:26,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1439039644, now seen corresponding path program 1 times [2020-10-25 20:28:26,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:26,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207584666] [2020-10-25 20:28:26,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:26,410 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 346 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-10-25 20:28:26,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207584666] [2020-10-25 20:28:26,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:26,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:26,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993522011] [2020-10-25 20:28:26,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:26,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:26,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:26,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:26,414 INFO L87 Difference]: Start difference. First operand 6533 states and 7982 transitions. Second operand 3 states. [2020-10-25 20:28:27,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:27,737 INFO L93 Difference]: Finished difference Result 14348 states and 17763 transitions. [2020-10-25 20:28:27,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:27,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 342 [2020-10-25 20:28:27,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:27,782 INFO L225 Difference]: With dead ends: 14348 [2020-10-25 20:28:27,783 INFO L226 Difference]: Without dead ends: 8185 [2020-10-25 20:28:27,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:27,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8185 states. [2020-10-25 20:28:27,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8185 to 7075. [2020-10-25 20:28:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7075 states. [2020-10-25 20:28:27,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7075 states to 7075 states and 8430 transitions. [2020-10-25 20:28:27,960 INFO L78 Accepts]: Start accepts. Automaton has 7075 states and 8430 transitions. Word has length 342 [2020-10-25 20:28:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:27,961 INFO L481 AbstractCegarLoop]: Abstraction has 7075 states and 8430 transitions. [2020-10-25 20:28:27,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 7075 states and 8430 transitions. [2020-10-25 20:28:27,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-25 20:28:27,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:27,976 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, 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, 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] [2020-10-25 20:28:27,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:28:27,977 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:27,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:27,977 INFO L82 PathProgramCache]: Analyzing trace with hash -460394605, now seen corresponding path program 1 times [2020-10-25 20:28:27,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:27,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352171949] [2020-10-25 20:28:27,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:28,328 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2020-10-25 20:28:28,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352171949] [2020-10-25 20:28:28,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:28,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:28,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884861895] [2020-10-25 20:28:28,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:28,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:28,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:28,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:28,331 INFO L87 Difference]: Start difference. First operand 7075 states and 8430 transitions. Second operand 3 states. [2020-10-25 20:28:29,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:29,574 INFO L93 Difference]: Finished difference Result 13037 states and 15608 transitions. [2020-10-25 20:28:29,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:29,575 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 369 [2020-10-25 20:28:29,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:29,608 INFO L225 Difference]: With dead ends: 13037 [2020-10-25 20:28:29,612 INFO L226 Difference]: Without dead ends: 7072 [2020-10-25 20:28:29,620 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:29,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7072 states. [2020-10-25 20:28:29,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7072 to 7071. [2020-10-25 20:28:29,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7071 states. [2020-10-25 20:28:29,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7071 states to 7071 states and 8235 transitions. [2020-10-25 20:28:29,755 INFO L78 Accepts]: Start accepts. Automaton has 7071 states and 8235 transitions. Word has length 369 [2020-10-25 20:28:29,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:29,756 INFO L481 AbstractCegarLoop]: Abstraction has 7071 states and 8235 transitions. [2020-10-25 20:28:29,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:29,756 INFO L276 IsEmpty]: Start isEmpty. Operand 7071 states and 8235 transitions. [2020-10-25 20:28:29,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-25 20:28:29,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:29,772 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, 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, 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] [2020-10-25 20:28:29,776 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:28:29,777 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:29,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:29,777 INFO L82 PathProgramCache]: Analyzing trace with hash 2044398374, now seen corresponding path program 1 times [2020-10-25 20:28:29,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:29,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895660613] [2020-10-25 20:28:29,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:30,186 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-10-25 20:28:30,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895660613] [2020-10-25 20:28:30,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:30,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:30,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971546167] [2020-10-25 20:28:30,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:30,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:30,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:30,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:30,189 INFO L87 Difference]: Start difference. First operand 7071 states and 8235 transitions. Second operand 3 states. [2020-10-25 20:28:31,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:31,724 INFO L93 Difference]: Finished difference Result 14697 states and 17250 transitions. [2020-10-25 20:28:31,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:31,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 374 [2020-10-25 20:28:31,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:31,744 INFO L225 Difference]: With dead ends: 14697 [2020-10-25 20:28:31,745 INFO L226 Difference]: Without dead ends: 8736 [2020-10-25 20:28:31,752 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:31,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8736 states. [2020-10-25 20:28:31,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8736 to 8548. [2020-10-25 20:28:31,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8548 states. [2020-10-25 20:28:31,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 9869 transitions. [2020-10-25 20:28:31,886 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 9869 transitions. Word has length 374 [2020-10-25 20:28:31,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:31,887 INFO L481 AbstractCegarLoop]: Abstraction has 8548 states and 9869 transitions. [2020-10-25 20:28:31,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 9869 transitions. [2020-10-25 20:28:31,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2020-10-25 20:28:31,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:31,905 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, 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, 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] [2020-10-25 20:28:31,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 20:28:31,905 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:31,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:31,906 INFO L82 PathProgramCache]: Analyzing trace with hash -84721034, now seen corresponding path program 1 times [2020-10-25 20:28:31,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:31,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240047508] [2020-10-25 20:28:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:32,323 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 464 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:28:32,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240047508] [2020-10-25 20:28:32,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:32,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 20:28:32,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390354392] [2020-10-25 20:28:32,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:28:32,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:32,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:28:32,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:28:32,328 INFO L87 Difference]: Start difference. First operand 8548 states and 9869 transitions. Second operand 4 states. [2020-10-25 20:28:34,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:34,690 INFO L93 Difference]: Finished difference Result 23392 states and 27288 transitions. [2020-10-25 20:28:34,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:28:34,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 388 [2020-10-25 20:28:34,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:34,719 INFO L225 Difference]: With dead ends: 23392 [2020-10-25 20:28:34,719 INFO L226 Difference]: Without dead ends: 15214 [2020-10-25 20:28:34,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:28:34,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15214 states. [2020-10-25 20:28:34,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15214 to 13548. [2020-10-25 20:28:34,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13548 states. [2020-10-25 20:28:34,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13548 states to 13548 states and 15527 transitions. [2020-10-25 20:28:34,930 INFO L78 Accepts]: Start accepts. Automaton has 13548 states and 15527 transitions. Word has length 388 [2020-10-25 20:28:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:34,931 INFO L481 AbstractCegarLoop]: Abstraction has 13548 states and 15527 transitions. [2020-10-25 20:28:34,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:28:34,931 INFO L276 IsEmpty]: Start isEmpty. Operand 13548 states and 15527 transitions. [2020-10-25 20:28:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-10-25 20:28:34,948 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:34,949 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, 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, 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] [2020-10-25 20:28:34,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 20:28:34,949 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:34,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:34,950 INFO L82 PathProgramCache]: Analyzing trace with hash 294261885, now seen corresponding path program 1 times [2020-10-25 20:28:34,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:34,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514856344] [2020-10-25 20:28:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:35,501 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 182 proven. 171 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-25 20:28:35,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514856344] [2020-10-25 20:28:35,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163942076] [2020-10-25 20:28:35,501 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 [2020-10-25 20:28:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:35,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 20:28:35,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:28:35,784 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 20:28:35,796 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 20:28:35,825 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-25 20:28:35,950 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2020-10-25 20:28:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-25 20:28:36,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:28:36,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2020-10-25 20:28:36,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292748288] [2020-10-25 20:28:36,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 20:28:36,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:36,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 20:28:36,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-25 20:28:36,367 INFO L87 Difference]: Start difference. First operand 13548 states and 15527 transitions. Second operand 5 states. [2020-10-25 20:28:41,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:41,390 INFO L93 Difference]: Finished difference Result 33733 states and 39009 transitions. [2020-10-25 20:28:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:28:41,391 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 398 [2020-10-25 20:28:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:41,433 INFO L225 Difference]: With dead ends: 33733 [2020-10-25 20:28:41,433 INFO L226 Difference]: Without dead ends: 20555 [2020-10-25 20:28:41,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 395 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-25 20:28:41,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20555 states. [2020-10-25 20:28:41,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20555 to 20361. [2020-10-25 20:28:41,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20361 states. [2020-10-25 20:28:41,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20361 states to 20361 states and 23283 transitions. [2020-10-25 20:28:41,899 INFO L78 Accepts]: Start accepts. Automaton has 20361 states and 23283 transitions. Word has length 398 [2020-10-25 20:28:41,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:41,900 INFO L481 AbstractCegarLoop]: Abstraction has 20361 states and 23283 transitions. [2020-10-25 20:28:41,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 20:28:41,900 INFO L276 IsEmpty]: Start isEmpty. Operand 20361 states and 23283 transitions. [2020-10-25 20:28:41,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2020-10-25 20:28:41,922 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:41,922 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, 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, 3, 3, 3, 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] [2020-10-25 20:28:42,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-25 20:28:42,137 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:42,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:42,137 INFO L82 PathProgramCache]: Analyzing trace with hash -125213611, now seen corresponding path program 1 times [2020-10-25 20:28:42,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:42,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122426625] [2020-10-25 20:28:42,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:42,704 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-10-25 20:28:42,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122426625] [2020-10-25 20:28:42,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:42,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:28:42,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374687007] [2020-10-25 20:28:42,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:42,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:42,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:42,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:42,708 INFO L87 Difference]: Start difference. First operand 20361 states and 23283 transitions. Second operand 3 states. [2020-10-25 20:28:43,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:43,656 INFO L93 Difference]: Finished difference Result 37940 states and 43403 transitions. [2020-10-25 20:28:43,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:43,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 403 [2020-10-25 20:28:43,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:43,698 INFO L225 Difference]: With dead ends: 37940 [2020-10-25 20:28:43,698 INFO L226 Difference]: Without dead ends: 19241 [2020-10-25 20:28:43,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:43,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19241 states. [2020-10-25 20:28:44,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19241 to 19235. [2020-10-25 20:28:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19235 states. [2020-10-25 20:28:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19235 states to 19235 states and 21915 transitions. [2020-10-25 20:28:44,047 INFO L78 Accepts]: Start accepts. Automaton has 19235 states and 21915 transitions. Word has length 403 [2020-10-25 20:28:44,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:44,047 INFO L481 AbstractCegarLoop]: Abstraction has 19235 states and 21915 transitions. [2020-10-25 20:28:44,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:44,048 INFO L276 IsEmpty]: Start isEmpty. Operand 19235 states and 21915 transitions. [2020-10-25 20:28:44,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2020-10-25 20:28:44,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:44,080 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, 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, 3, 3, 3, 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] [2020-10-25 20:28:44,080 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-25 20:28:44,080 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:44,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:44,081 INFO L82 PathProgramCache]: Analyzing trace with hash -179606509, now seen corresponding path program 1 times [2020-10-25 20:28:44,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:44,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514704429] [2020-10-25 20:28:44,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-25 20:28:44,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514704429] [2020-10-25 20:28:44,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:44,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:44,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706579757] [2020-10-25 20:28:44,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:44,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:44,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:44,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:44,592 INFO L87 Difference]: Start difference. First operand 19235 states and 21915 transitions. Second operand 3 states. [2020-10-25 20:28:46,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:46,509 INFO L93 Difference]: Finished difference Result 41416 states and 47264 transitions. [2020-10-25 20:28:46,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:46,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 403 [2020-10-25 20:28:46,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:46,548 INFO L225 Difference]: With dead ends: 41416 [2020-10-25 20:28:46,548 INFO L226 Difference]: Without dead ends: 22551 [2020-10-25 20:28:46,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:46,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22551 states. [2020-10-25 20:28:46,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22551 to 22547. [2020-10-25 20:28:46,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22547 states. [2020-10-25 20:28:46,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22547 states to 22547 states and 25587 transitions. [2020-10-25 20:28:46,991 INFO L78 Accepts]: Start accepts. Automaton has 22547 states and 25587 transitions. Word has length 403 [2020-10-25 20:28:46,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:46,991 INFO L481 AbstractCegarLoop]: Abstraction has 22547 states and 25587 transitions. [2020-10-25 20:28:46,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:46,991 INFO L276 IsEmpty]: Start isEmpty. Operand 22547 states and 25587 transitions. [2020-10-25 20:28:47,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2020-10-25 20:28:47,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:47,019 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:28:47,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-25 20:28:47,019 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:47,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:47,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1303857567, now seen corresponding path program 1 times [2020-10-25 20:28:47,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:47,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982467703] [2020-10-25 20:28:47,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 435 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-25 20:28:47,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982467703] [2020-10-25 20:28:47,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:47,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:47,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165287298] [2020-10-25 20:28:47,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:47,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:47,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:47,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:47,329 INFO L87 Difference]: Start difference. First operand 22547 states and 25587 transitions. Second operand 3 states. [2020-10-25 20:28:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:49,232 INFO L93 Difference]: Finished difference Result 45271 states and 51422 transitions. [2020-10-25 20:28:49,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:49,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 486 [2020-10-25 20:28:49,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:49,271 INFO L225 Difference]: With dead ends: 45271 [2020-10-25 20:28:49,271 INFO L226 Difference]: Without dead ends: 22912 [2020-10-25 20:28:49,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:49,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22912 states. [2020-10-25 20:28:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22912 to 22169. [2020-10-25 20:28:49,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22169 states. [2020-10-25 20:28:49,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22169 states to 22169 states and 24699 transitions. [2020-10-25 20:28:49,591 INFO L78 Accepts]: Start accepts. Automaton has 22169 states and 24699 transitions. Word has length 486 [2020-10-25 20:28:49,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:49,592 INFO L481 AbstractCegarLoop]: Abstraction has 22169 states and 24699 transitions. [2020-10-25 20:28:49,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:49,592 INFO L276 IsEmpty]: Start isEmpty. Operand 22169 states and 24699 transitions. [2020-10-25 20:28:49,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2020-10-25 20:28:49,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:49,611 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:28:49,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-25 20:28:49,612 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:49,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:49,612 INFO L82 PathProgramCache]: Analyzing trace with hash 2022320504, now seen corresponding path program 1 times [2020-10-25 20:28:49,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:49,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685933754] [2020-10-25 20:28:49,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:50,554 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 455 proven. 85 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-10-25 20:28:50,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685933754] [2020-10-25 20:28:50,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712740465] [2020-10-25 20:28:50,555 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 [2020-10-25 20:28:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:50,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 20:28:50,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:28:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 540 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-10-25 20:28:51,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:28:51,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 20:28:51,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512462100] [2020-10-25 20:28:51,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:51,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:51,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:51,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:28:51,205 INFO L87 Difference]: Start difference. First operand 22169 states and 24699 transitions. Second operand 3 states. [2020-10-25 20:28:52,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:52,851 INFO L93 Difference]: Finished difference Result 43602 states and 48596 transitions. [2020-10-25 20:28:52,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:28:52,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 509 [2020-10-25 20:28:52,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:52,881 INFO L225 Difference]: With dead ends: 43602 [2020-10-25 20:28:52,881 INFO L226 Difference]: Without dead ends: 23279 [2020-10-25 20:28:52,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:28:52,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23279 states. [2020-10-25 20:28:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23279 to 22721. [2020-10-25 20:28:53,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22721 states. [2020-10-25 20:28:53,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22721 states to 22721 states and 25212 transitions. [2020-10-25 20:28:53,271 INFO L78 Accepts]: Start accepts. Automaton has 22721 states and 25212 transitions. Word has length 509 [2020-10-25 20:28:53,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:53,272 INFO L481 AbstractCegarLoop]: Abstraction has 22721 states and 25212 transitions. [2020-10-25 20:28:53,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:28:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 22721 states and 25212 transitions. [2020-10-25 20:28:53,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-10-25 20:28:53,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:53,404 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:28:53,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-10-25 20:28:53,614 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:53,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:53,615 INFO L82 PathProgramCache]: Analyzing trace with hash -54285245, now seen corresponding path program 1 times [2020-10-25 20:28:53,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:53,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722254531] [2020-10-25 20:28:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 516 proven. 24 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-10-25 20:28:54,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722254531] [2020-10-25 20:28:54,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780532411] [2020-10-25 20:28:54,766 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 [2020-10-25 20:28:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:54,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-25 20:28:54,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:28:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 540 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-10-25 20:28:55,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:28:55,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2020-10-25 20:28:55,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498031779] [2020-10-25 20:28:55,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:28:55,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:55,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:28:55,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-25 20:28:55,230 INFO L87 Difference]: Start difference. First operand 22721 states and 25212 transitions. Second operand 4 states. [2020-10-25 20:28:57,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:28:57,662 INFO L93 Difference]: Finished difference Result 47830 states and 52936 transitions. [2020-10-25 20:28:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:28:57,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 510 [2020-10-25 20:28:57,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:28:57,687 INFO L225 Difference]: With dead ends: 47830 [2020-10-25 20:28:57,687 INFO L226 Difference]: Without dead ends: 25295 [2020-10-25 20:28:57,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-25 20:28:57,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25295 states. [2020-10-25 20:28:58,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25295 to 22343. [2020-10-25 20:28:58,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22343 states. [2020-10-25 20:28:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22343 states to 22343 states and 24663 transitions. [2020-10-25 20:28:58,106 INFO L78 Accepts]: Start accepts. Automaton has 22343 states and 24663 transitions. Word has length 510 [2020-10-25 20:28:58,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:28:58,107 INFO L481 AbstractCegarLoop]: Abstraction has 22343 states and 24663 transitions. [2020-10-25 20:28:58,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:28:58,107 INFO L276 IsEmpty]: Start isEmpty. Operand 22343 states and 24663 transitions. [2020-10-25 20:28:58,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2020-10-25 20:28:58,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:28:58,128 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, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-25 20:28:58,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-25 20:28:58,341 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:28:58,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:28:58,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1680389733, now seen corresponding path program 1 times [2020-10-25 20:28:58,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:28:58,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73404931] [2020-10-25 20:28:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:28:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:28:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2020-10-25 20:28:58,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73404931] [2020-10-25 20:28:58,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:28:58,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:28:58,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961061812] [2020-10-25 20:28:58,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:28:58,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:28:58,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:28:58,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:28:58,793 INFO L87 Difference]: Start difference. First operand 22343 states and 24663 transitions. Second operand 3 states. [2020-10-25 20:29:00,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:29:00,415 INFO L93 Difference]: Finished difference Result 46888 states and 51817 transitions. [2020-10-25 20:29:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:29:00,416 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 537 [2020-10-25 20:29:00,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:29:00,439 INFO L225 Difference]: With dead ends: 46888 [2020-10-25 20:29:00,439 INFO L226 Difference]: Without dead ends: 24915 [2020-10-25 20:29:00,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:29:00,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24915 states. [2020-10-25 20:29:00,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24915 to 17001. [2020-10-25 20:29:00,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17001 states. [2020-10-25 20:29:00,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17001 states to 17001 states and 18611 transitions. [2020-10-25 20:29:00,667 INFO L78 Accepts]: Start accepts. Automaton has 17001 states and 18611 transitions. Word has length 537 [2020-10-25 20:29:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:29:00,668 INFO L481 AbstractCegarLoop]: Abstraction has 17001 states and 18611 transitions. [2020-10-25 20:29:00,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:29:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 17001 states and 18611 transitions. [2020-10-25 20:29:00,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 732 [2020-10-25 20:29:00,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:29:00,689 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, 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:29:00,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-25 20:29:00,690 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:29:00,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:29:00,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1493789412, now seen corresponding path program 1 times [2020-10-25 20:29:00,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:29:00,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326140496] [2020-10-25 20:29:00,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:29:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:29:01,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1778 backedges. 1286 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2020-10-25 20:29:01,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326140496] [2020-10-25 20:29:01,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:29:01,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:29:01,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284944673] [2020-10-25 20:29:01,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:29:01,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:29:01,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:29:01,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:29:01,547 INFO L87 Difference]: Start difference. First operand 17001 states and 18611 transitions. Second operand 3 states. [2020-10-25 20:29:03,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:29:03,124 INFO L93 Difference]: Finished difference Result 35493 states and 38878 transitions. [2020-10-25 20:29:03,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:29:03,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 731 [2020-10-25 20:29:03,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:29:03,142 INFO L225 Difference]: With dead ends: 35493 [2020-10-25 20:29:03,143 INFO L226 Difference]: Without dead ends: 18678 [2020-10-25 20:29:03,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:29:03,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18678 states. [2020-10-25 20:29:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18678 to 18289. [2020-10-25 20:29:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18289 states. [2020-10-25 20:29:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18289 states to 18289 states and 19927 transitions. [2020-10-25 20:29:03,320 INFO L78 Accepts]: Start accepts. Automaton has 18289 states and 19927 transitions. Word has length 731 [2020-10-25 20:29:03,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:29:03,321 INFO L481 AbstractCegarLoop]: Abstraction has 18289 states and 19927 transitions. [2020-10-25 20:29:03,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:29:03,321 INFO L276 IsEmpty]: Start isEmpty. Operand 18289 states and 19927 transitions. [2020-10-25 20:29:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2020-10-25 20:29:03,409 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:29:03,409 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, 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:29:03,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-25 20:29:03,410 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:29:03,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:29:03,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1278521455, now seen corresponding path program 1 times [2020-10-25 20:29:03,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:29:03,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805172860] [2020-10-25 20:29:03,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:29:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:29:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1777 backedges. 1159 proven. 0 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2020-10-25 20:29:04,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805172860] [2020-10-25 20:29:04,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:29:04,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:29:04,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791574317] [2020-10-25 20:29:04,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:29:04,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:29:04,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:29:04,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:29:04,085 INFO L87 Difference]: Start difference. First operand 18289 states and 19927 transitions. Second operand 3 states. [2020-10-25 20:29:05,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:29:05,796 INFO L93 Difference]: Finished difference Result 34727 states and 37735 transitions. [2020-10-25 20:29:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:29:05,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 732 [2020-10-25 20:29:05,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:29:05,798 INFO L225 Difference]: With dead ends: 34727 [2020-10-25 20:29:05,798 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:29:05,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:29:05,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:29:05,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:29:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:29:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:29:05,813 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 732 [2020-10-25 20:29:05,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:29:05,813 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:29:05,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:29:05,813 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:29:05,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:29:05,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-25 20:29:05,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:29:06,253 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 153 [2020-10-25 20:29:06,790 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 153 [2020-10-25 20:29:07,874 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 139 DAG size of output: 69 [2020-10-25 20:29:09,008 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 139 DAG size of output: 69 [2020-10-25 20:29:09,013 INFO L274 CegarLoopResult]: For program point L960(lines 960 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,013 INFO L274 CegarLoopResult]: For program point L696(lines 696 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,013 INFO L274 CegarLoopResult]: For program point L630(lines 630 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,013 INFO L270 CegarLoopResult]: At program point L1027(lines 24 1028) the Hoare annotation is: (let ((.cse6 (= ~a4~0 1))) (let ((.cse2 (<= (+ ~a29~0 28470) 0)) (.cse0 (<= ~a25~0 9)) (.cse9 (<= 0 (+ ~a23~0 41))) (.cse10 (<= 130 ~a29~0)) (.cse8 (<= 13 ~a25~0)) (.cse5 (= ~a25~0 12)) (.cse13 (= ~a25~0 11)) (.cse11 (<= ~a23~0 138)) (.cse7 (<= ~a29~0 140)) (.cse15 (not .cse6)) (.cse12 (< 0 (+ ~a23~0 43))) (.cse4 (<= ~a25~0 10)) (.cse1 (<= ~a23~0 312)) (.cse3 (<= ~a8~0 15)) (.cse14 (<= 0 (div (+ ~a29~0 (- 261)) 15)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse2 (or .cse4 .cse5) .cse3 .cse6) (and (= ~a25~0 10) .cse7 .cse3) (and .cse8 .cse6 .cse3) (and .cse9 .cse1 .cse3 .cse6) (and (<= (+ ~a29~0 554036) 0) .cse5 .cse3) (and .cse10 .cse5 .cse3) (and .cse0 .cse1 .cse6 .cse3) (and .cse3 .cse6 (<= 246 ~a29~0)) (and .cse9 .cse10 (<= ~a29~0 220) .cse3 .cse6) (and .cse4 .cse10 .cse6 .cse3) (and .cse11 .cse8 .cse12 .cse3) (and .cse1 .cse5 .cse3) (and .cse13 .cse1 .cse3 .cse14) (and .cse13 .cse7 .cse1 .cse15 .cse3) (and .cse11 .cse7 .cse15 .cse12 .cse3) (and .cse4 .cse1 .cse3 .cse14)))) [2020-10-25 20:29:09,013 INFO L274 CegarLoopResult]: For program point L895(lines 895 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,013 INFO L274 CegarLoopResult]: For program point L697(lines 697 707) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L697-2(lines 697 707) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L367(lines 367 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L301(lines 301 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L235(lines 235 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L169-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L103-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L37-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-25 20:29:09,014 INFO L277 CegarLoopResult]: At program point L1030(lines 1030 1046) the Hoare annotation is: true [2020-10-25 20:29:09,015 INFO L274 CegarLoopResult]: For program point L568(lines 568 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,015 INFO L274 CegarLoopResult]: For program point L502(lines 502 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,015 INFO L274 CegarLoopResult]: For program point L172-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,015 INFO L274 CegarLoopResult]: For program point L106-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,015 INFO L274 CegarLoopResult]: For program point L40-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,015 INFO L274 CegarLoopResult]: For program point L965(lines 965 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,015 INFO L274 CegarLoopResult]: For program point L833(lines 833 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L900(lines 900 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L438(lines 438 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L372(lines 372 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L637(lines 637 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L307(lines 307 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L175-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,016 INFO L274 CegarLoopResult]: For program point L109-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,017 INFO L274 CegarLoopResult]: For program point L43-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,017 INFO L274 CegarLoopResult]: For program point L242(lines 242 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,017 INFO L274 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-10-25 20:29:09,017 INFO L274 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-10-25 20:29:09,017 INFO L274 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-10-25 20:29:09,017 INFO L274 CegarLoopResult]: For program point L771(lines 771 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,017 INFO L270 CegarLoopResult]: At program point L1036-2(lines 1036 1045) the Hoare annotation is: (let ((.cse6 (= ~a4~0 1))) (let ((.cse2 (<= (+ ~a29~0 28470) 0)) (.cse0 (<= ~a25~0 9)) (.cse9 (<= 0 (+ ~a23~0 41))) (.cse10 (<= 130 ~a29~0)) (.cse8 (<= 13 ~a25~0)) (.cse5 (= ~a25~0 12)) (.cse13 (= ~a25~0 11)) (.cse11 (<= ~a23~0 138)) (.cse7 (<= ~a29~0 140)) (.cse15 (not .cse6)) (.cse12 (< 0 (+ ~a23~0 43))) (.cse4 (<= ~a25~0 10)) (.cse1 (<= ~a23~0 312)) (.cse3 (<= ~a8~0 15)) (.cse14 (<= 0 (div (+ ~a29~0 (- 261)) 15)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse2 (or .cse4 .cse5) .cse3 .cse6) (and (= ~a25~0 10) .cse7 .cse3) (and .cse8 .cse6 .cse3) (and .cse9 .cse1 .cse3 .cse6) (and (<= (+ ~a29~0 554036) 0) .cse5 .cse3) (and .cse10 .cse5 .cse3) (and .cse0 .cse1 .cse6 .cse3) (and .cse3 .cse6 (<= 246 ~a29~0)) (and .cse9 .cse10 (<= ~a29~0 220) .cse3 .cse6) (and .cse4 .cse10 .cse6 .cse3) (and .cse11 .cse8 .cse12 .cse3) (and .cse1 .cse5 .cse3) (and .cse13 .cse1 .cse3 .cse14) (and .cse13 .cse7 .cse1 .cse15 .cse3) (and .cse11 .cse7 .cse15 .cse12 .cse3) (and .cse4 .cse1 .cse3 .cse14)))) [2020-10-25 20:29:09,017 INFO L274 CegarLoopResult]: For program point L838(lines 838 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L574(lines 574 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L178-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L112-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L46-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L971(lines 971 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L905(lines 905 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L509(lines 509 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L972(lines 972 982) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L906(lines 906 916) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L972-2(lines 972 982) no Hoare annotation was computed. [2020-10-25 20:29:09,018 INFO L274 CegarLoopResult]: For program point L906-2(lines 906 916) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L708(lines 708 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L312(lines 312 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L577(lines 577 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L445(lines 445 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L379(lines 379 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L181-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L115-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L49-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L776(lines 776 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L644(lines 644 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-10-25 20:29:09,019 INFO L274 CegarLoopResult]: For program point L1041(line 1041) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L843(lines 843 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L249(lines 249 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L184-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L118-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L52-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L714(lines 714 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L516(lines 516 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L649(lines 649 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L583(lines 583 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L517(lines 517 527) no Hoare annotation was computed. [2020-10-25 20:29:09,020 INFO L274 CegarLoopResult]: For program point L517-2(lines 517 527) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L319(lines 319 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L187-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L121-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L55-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L848(lines 848 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L782(lines 782 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L650(lines 650 659) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L650-2(lines 650 659) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L452(lines 452 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L386(lines 386 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-10-25 20:29:09,021 INFO L274 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L256(lines 256 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L190-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L124-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L58-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L983(lines 983 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L917(lines 917 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L719(lines 719 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L918(lines 918 928) no Hoare annotation was computed. [2020-10-25 20:29:09,022 INFO L274 CegarLoopResult]: For program point L918-2(lines 918 928) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L720(lines 720 732) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L720-2(lines 720 732) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L588(lines 588 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L324(lines 324 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L589(lines 589 599) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L589-2(lines 589 599) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L193-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L127-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L61-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L854(lines 854 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L458(lines 458 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-10-25 20:29:09,023 INFO L274 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L789(lines 789 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L393(lines 393 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L262(lines 262 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L196-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L130-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L64-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L990(lines 990 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:29:09,024 INFO L274 CegarLoopResult]: For program point L660(lines 660 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L528(lines 528 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L331(lines 331 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L199-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L133-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L67-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L794(lines 794 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L861(lines 861 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L465(lines 465 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L267(lines 267 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L400(lines 400 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L202-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,025 INFO L274 CegarLoopResult]: For program point L136-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L70-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L995(lines 995 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L929(lines 929 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L665(lines 665 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L533(lines 533 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L401(lines 401 412) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L401-2(lines 401 412) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L600(lines 600 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L336(lines 336 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,026 INFO L274 CegarLoopResult]: For program point L270(lines 270 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L733(lines 733 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L205-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L139-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L73-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L867(lines 867 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L801(lines 801 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L934(lines 934 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L868(lines 868 877) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L868-2(lines 868 877) no Hoare annotation was computed. [2020-10-25 20:29:09,027 INFO L274 CegarLoopResult]: For program point L472(lines 472 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L142-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L76-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L605(lines 605 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L539(lines 539 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L1002(lines 1002 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L672(lines 672 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L606(lines 606 616) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L606-2(lines 606 616) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L342(lines 342 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L277(lines 277 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,028 INFO L274 CegarLoopResult]: For program point L145-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L79-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L806(lines 806 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L740(lines 740 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L807(lines 807 817) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L807-2(lines 807 817) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L544(lines 544 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L148-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L82-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L1007(lines 1007 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L941(lines 941 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L677(lines 677 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,029 INFO L274 CegarLoopResult]: For program point L479(lines 479 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L413(lines 413 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L942(lines 942 954) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L942-2(lines 942 954) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L480(lines 480 488) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L480-2(lines 480 488) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L348(lines 348 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L282(lines 282 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L216(lines 216 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L745(lines 745 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L151-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L85-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point L878(lines 878 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,030 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L154-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L88-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L683(lines 683 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L617(lines 617 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L551(lines 551 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L419(lines 419 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L1014(lines 1014 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L883(lines 883 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L355(lines 355 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,031 INFO L274 CegarLoopResult]: For program point L289(lines 289 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L223(lines 223 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L157-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L91-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L25-2(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L818(lines 818 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L752(lines 752 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L489(lines 489 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L490(lines 490 501) no Hoare annotation was computed. [2020-10-25 20:29:09,032 INFO L274 CegarLoopResult]: For program point L424(lines 424 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L490-2(lines 490 501) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L160-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L94-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L28-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L1019(lines 1019 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L623(lines 623 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L557(lines 557 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L888(lines 888 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,033 INFO L274 CegarLoopResult]: For program point L690(lines 690 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L360(lines 360 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L955(lines 955 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L229(lines 229 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L163-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L97-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L31-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L824(lines 824 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L296(lines 296 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L759(lines 759 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,034 INFO L274 CegarLoopResult]: For program point L760(lines 760 770) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L760-2(lines 760 770) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L166-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L100-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L34-1(lines 24 1028) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L827(lines 827 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L563(lines 563 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L431(lines 431 1026) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-25 20:29:09,035 INFO L274 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-10-25 20:29:09,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:29:09 BoogieIcfgContainer [2020-10-25 20:29:09,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:29:09,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:29:09,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:29:09,065 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:29:09,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:28:11" (3/4) ... [2020-10-25 20:29:09,070 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:29:09,099 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:29:09,101 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:29:09,103 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:29:09,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:29:09,299 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:29:09,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:29:09,301 INFO L168 Benchmark]: Toolchain (without parser) took 61355.68 ms. Allocated memory was 44.0 MB in the beginning and 2.3 GB in the end (delta: 2.2 GB). Free memory was 27.2 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 287.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:29:09,301 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 24.9 MB in the beginning and 24.8 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:29:09,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 888.97 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 26.5 MB in the beginning and 26.1 MB in the end (delta: 394.7 kB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2020-10-25 20:29:09,302 INFO L168 Benchmark]: Boogie Procedure Inliner took 173.80 ms. Allocated memory is still 54.5 MB. Free memory was 26.1 MB in the beginning and 19.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-10-25 20:29:09,302 INFO L168 Benchmark]: Boogie Preprocessor took 185.93 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 19.3 MB in the beginning and 29.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-10-25 20:29:09,303 INFO L168 Benchmark]: RCFGBuilder took 2142.12 ms. Allocated memory was 69.2 MB in the beginning and 134.2 MB in the end (delta: 65.0 MB). Free memory was 29.4 MB in the beginning and 92.4 MB in the end (delta: -63.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:29:09,303 INFO L168 Benchmark]: TraceAbstraction took 57714.10 ms. Allocated memory was 134.2 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 91.4 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. [2020-10-25 20:29:09,304 INFO L168 Benchmark]: Witness Printer took 234.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-10-25 20:29:09,306 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 44.0 MB. Free memory was 24.9 MB in the beginning and 24.8 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 888.97 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 26.5 MB in the beginning and 26.1 MB in the end (delta: 394.7 kB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 173.80 ms. Allocated memory is still 54.5 MB. Free memory was 26.1 MB in the beginning and 19.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 185.93 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 19.3 MB in the beginning and 29.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2142.12 ms. Allocated memory was 69.2 MB in the beginning and 134.2 MB in the end (delta: 65.0 MB). Free memory was 29.4 MB in the beginning and 92.4 MB in the end (delta: -63.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 57714.10 ms. Allocated memory was 134.2 MB in the beginning and 2.3 GB in the end (delta: 2.1 GB). Free memory was 91.4 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. * Witness Printer took 234.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((((((((((((((((a25 <= 9 && a23 <= 312) && a29 + 28470 <= 0) && a8 <= 15) || (((a29 + 28470 <= 0 && (a25 <= 10 || a25 == 12)) && a8 <= 15) && a4 == 1)) || ((a25 == 10 && a29 <= 140) && a8 <= 15)) || ((13 <= a25 && a4 == 1) && a8 <= 15)) || (((0 <= a23 + 41 && a23 <= 312) && a8 <= 15) && a4 == 1)) || ((a29 + 554036 <= 0 && a25 == 12) && a8 <= 15)) || ((130 <= a29 && a25 == 12) && a8 <= 15)) || (((a25 <= 9 && a23 <= 312) && a4 == 1) && a8 <= 15)) || ((a8 <= 15 && a4 == 1) && 246 <= a29)) || ((((0 <= a23 + 41 && 130 <= a29) && a29 <= 220) && a8 <= 15) && a4 == 1)) || (((a25 <= 10 && 130 <= a29) && a4 == 1) && a8 <= 15)) || (((a23 <= 138 && 13 <= a25) && 0 < a23 + 43) && a8 <= 15)) || ((a23 <= 312 && a25 == 12) && a8 <= 15)) || (((a25 == 11 && a23 <= 312) && a8 <= 15) && 0 <= (a29 + -261) / 15)) || ((((a25 == 11 && a29 <= 140) && a23 <= 312) && !(a4 == 1)) && a8 <= 15)) || ((((a23 <= 138 && a29 <= 140) && !(a4 == 1)) && 0 < a23 + 43) && a8 <= 15)) || (((a25 <= 10 && a23 <= 312) && a8 <= 15) && 0 <= (a29 + -261) / 15) - InvariantResult [Line: 1030]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1036]: Loop Invariant Derived loop invariant: ((((((((((((((((((a25 <= 9 && a23 <= 312) && a29 + 28470 <= 0) && a8 <= 15) || (((a29 + 28470 <= 0 && (a25 <= 10 || a25 == 12)) && a8 <= 15) && a4 == 1)) || ((a25 == 10 && a29 <= 140) && a8 <= 15)) || ((13 <= a25 && a4 == 1) && a8 <= 15)) || (((0 <= a23 + 41 && a23 <= 312) && a8 <= 15) && a4 == 1)) || ((a29 + 554036 <= 0 && a25 == 12) && a8 <= 15)) || ((130 <= a29 && a25 == 12) && a8 <= 15)) || (((a25 <= 9 && a23 <= 312) && a4 == 1) && a8 <= 15)) || ((a8 <= 15 && a4 == 1) && 246 <= a29)) || ((((0 <= a23 + 41 && 130 <= a29) && a29 <= 220) && a8 <= 15) && a4 == 1)) || (((a25 <= 10 && 130 <= a29) && a4 == 1) && a8 <= 15)) || (((a23 <= 138 && 13 <= a25) && 0 < a23 + 43) && a8 <= 15)) || ((a23 <= 312 && a25 == 12) && a8 <= 15)) || (((a25 == 11 && a23 <= 312) && a8 <= 15) && 0 <= (a29 + -261) / 15)) || ((((a25 == 11 && a29 <= 140) && a23 <= 312) && !(a4 == 1)) && a8 <= 15)) || ((((a23 <= 138 && a29 <= 140) && !(a4 == 1)) && 0 < a23 + 43) && a8 <= 15)) || (((a25 <= 10 && a23 <= 312) && a8 <= 15) && 0 <= (a29 + -261) / 15) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 284 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 54.3s, OverallIterations: 20, TraceHistogramMax: 7, AutomataDifference: 37.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3683 SDtfs, 3309 SDslu, 485 SDs, 0 SdLazy, 12650 SolverSat, 2191 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 26.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1476 GetRequests, 1440 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22721occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 20 MinimizatonAttempts, 16308 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 209 NumberOfFragments, 483 HoareAnnotationTreeSize, 3 FomulaSimplifications, 11318 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2840 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 8964 NumberOfCodeBlocks, 8964 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 8941 ConstructedInterpolants, 1 QuantifiedInterpolants, 11567255 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1936 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 23 InterpolantComputations, 20 PerfectInterpolantSequences, 12756/13036 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...