./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label25.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/Problem14_label25.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 52e46c03cd4d7c1e8c47aa482264c79aea539d3d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 20:45:50,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 20:45:50,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 20:45:50,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 20:45:50,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 20:45:50,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 20:45:50,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 20:45:50,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 20:45:50,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 20:45:50,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 20:45:50,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 20:45:50,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 20:45:50,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 20:45:50,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 20:45:50,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 20:45:50,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 20:45:50,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 20:45:50,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 20:45:50,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 20:45:50,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 20:45:50,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 20:45:50,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 20:45:50,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 20:45:50,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 20:45:50,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 20:45:50,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 20:45:50,243 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 20:45:50,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 20:45:50,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 20:45:50,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 20:45:50,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 20:45:50,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 20:45:50,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 20:45:50,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 20:45:50,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 20:45:50,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 20:45:50,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 20:45:50,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 20:45:50,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 20:45:50,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 20:45:50,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 20:45:50,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 20:45:50,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 20:45:50,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 20:45:50,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 20:45:50,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 20:45:50,335 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 20:45:50,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 20:45:50,336 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 20:45:50,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 20:45:50,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 20:45:50,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 20:45:50,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 20:45:50,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 20:45:50,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 20:45:50,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 20:45:50,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 20:45:50,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 20:45:50,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 20:45:50,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 20:45:50,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 20:45:50,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 20:45:50,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 20:45:50,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 20:45:50,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 20:45:50,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 20:45:50,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 20:45:50,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 20:45:50,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 20:45:50,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 20:45:50,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 20:45:50,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52e46c03cd4d7c1e8c47aa482264c79aea539d3d [2020-10-25 20:45:50,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 20:45:50,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 20:45:50,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 20:45:50,879 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 20:45:50,880 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 20:45:50,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label25.c [2020-10-25 20:45:50,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08f8d8958/a827027ec3834b2998e244fed1e125c5/FLAG250d9dd50 [2020-10-25 20:45:51,831 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 20:45:51,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label25.c [2020-10-25 20:45:51,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08f8d8958/a827027ec3834b2998e244fed1e125c5/FLAG250d9dd50 [2020-10-25 20:45:52,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08f8d8958/a827027ec3834b2998e244fed1e125c5 [2020-10-25 20:45:52,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 20:45:52,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 20:45:52,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 20:45:52,050 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 20:45:52,055 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 20:45:52,056 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:52,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360c379e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52, skipping insertion in model container [2020-10-25 20:45:52,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:52,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 20:45:52,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 20:45:52,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:45:52,751 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 20:45:52,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 20:45:52,936 INFO L208 MainTranslator]: Completed translation [2020-10-25 20:45:52,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52 WrapperNode [2020-10-25 20:45:52,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 20:45:52,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 20:45:52,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 20:45:52,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 20:45:52,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:52,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:53,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 20:45:53,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 20:45:53,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 20:45:53,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 20:45:53,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:53,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:53,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:53,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:53,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:53,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:53,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (1/1) ... [2020-10-25 20:45:53,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 20:45:53,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 20:45:53,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 20:45:53,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 20:45:53,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (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 20:45:53,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 20:45:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 20:45:53,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 20:45:53,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 20:45:55,505 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 20:45:55,505 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-25 20:45:55,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:55 BoogieIcfgContainer [2020-10-25 20:45:55,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 20:45:55,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 20:45:55,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 20:45:55,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 20:45:55,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 08:45:52" (1/3) ... [2020-10-25 20:45:55,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad3cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:45:55, skipping insertion in model container [2020-10-25 20:45:55,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 08:45:52" (2/3) ... [2020-10-25 20:45:55,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad3cd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 08:45:55, skipping insertion in model container [2020-10-25 20:45:55,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:55" (3/3) ... [2020-10-25 20:45:55,519 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label25.c [2020-10-25 20:45:55,538 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 20:45:55,546 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 20:45:55,561 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 20:45:55,595 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 20:45:55,595 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 20:45:55,595 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 20:45:55,595 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 20:45:55,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 20:45:55,596 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 20:45:55,596 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 20:45:55,596 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 20:45:55,620 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states. [2020-10-25 20:45:55,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-25 20:45:55,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:55,632 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, 1] [2020-10-25 20:45:55,632 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:55,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:55,641 INFO L82 PathProgramCache]: Analyzing trace with hash -107486446, now seen corresponding path program 1 times [2020-10-25 20:45:55,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:55,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545316961] [2020-10-25 20:45:55,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:56,040 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 20:45:56,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545316961] [2020-10-25 20:45:56,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:56,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 20:45:56,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27879648] [2020-10-25 20:45:56,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:45:56,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:56,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:45:56,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:45:56,068 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 3 states. [2020-10-25 20:45:58,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:45:58,284 INFO L93 Difference]: Finished difference Result 686 states and 1217 transitions. [2020-10-25 20:45:58,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:45:58,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-10-25 20:45:58,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:45:58,306 INFO L225 Difference]: With dead ends: 686 [2020-10-25 20:45:58,306 INFO L226 Difference]: Without dead ends: 360 [2020-10-25 20:45:58,312 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 20:45:58,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-10-25 20:45:58,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-10-25 20:45:58,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-10-25 20:45:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-10-25 20:45:58,397 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 64 [2020-10-25 20:45:58,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:45:58,398 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-10-25 20:45:58,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:45:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-10-25 20:45:58,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-25 20:45:58,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:45:58,412 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, 2, 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 20:45:58,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 20:45:58,412 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:45:58,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:45:58,415 INFO L82 PathProgramCache]: Analyzing trace with hash 2141586279, now seen corresponding path program 1 times [2020-10-25 20:45:58,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:45:58,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042117830] [2020-10-25 20:45:58,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:45:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:45:58,809 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:45:58,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042117830] [2020-10-25 20:45:58,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:45:58,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:45:58,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643641924] [2020-10-25 20:45:58,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:45:58,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:45:58,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:45:58,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:45:58,816 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 4 states. [2020-10-25 20:46:01,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:01,439 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2020-10-25 20:46:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:01,442 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-10-25 20:46:01,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:01,458 INFO L225 Difference]: With dead ends: 1074 [2020-10-25 20:46:01,460 INFO L226 Difference]: Without dead ends: 716 [2020-10-25 20:46:01,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:01,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-25 20:46:01,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-10-25 20:46:01,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-10-25 20:46:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2020-10-25 20:46:01,547 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 143 [2020-10-25 20:46:01,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:01,548 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2020-10-25 20:46:01,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:01,549 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2020-10-25 20:46:01,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-25 20:46:01,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:01,555 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, 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] [2020-10-25 20:46:01,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 20:46:01,556 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:01,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:01,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1751766938, now seen corresponding path program 1 times [2020-10-25 20:46:01,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:01,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857825727] [2020-10-25 20:46:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:01,926 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-25 20:46:01,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857825727] [2020-10-25 20:46:01,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458191198] [2020-10-25 20:46:01,928 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 20:46:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:02,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:02,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-25 20:46:02,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:02,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2020-10-25 20:46:02,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137973808] [2020-10-25 20:46:02,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:02,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:02,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:02,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:02,340 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand 3 states. [2020-10-25 20:46:04,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:04,015 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2020-10-25 20:46:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:04,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-10-25 20:46:04,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:04,024 INFO L225 Difference]: With dead ends: 1252 [2020-10-25 20:46:04,025 INFO L226 Difference]: Without dead ends: 1250 [2020-10-25 20:46:04,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:04,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-10-25 20:46:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2020-10-25 20:46:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-25 20:46:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2020-10-25 20:46:04,059 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 169 [2020-10-25 20:46:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:04,060 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2020-10-25 20:46:04,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:04,061 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2020-10-25 20:46:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-10-25 20:46:04,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:04,067 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:04,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-25 20:46:04,282 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:04,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:04,283 INFO L82 PathProgramCache]: Analyzing trace with hash -22183269, now seen corresponding path program 1 times [2020-10-25 20:46:04,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:04,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698613444] [2020-10-25 20:46:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-25 20:46:04,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698613444] [2020-10-25 20:46:04,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:04,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:04,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272773301] [2020-10-25 20:46:04,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:46:04,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:04,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:46:04,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:04,721 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand 4 states. [2020-10-25 20:46:06,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:06,587 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2020-10-25 20:46:06,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:06,588 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 223 [2020-10-25 20:46:06,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:06,594 INFO L225 Difference]: With dead ends: 1993 [2020-10-25 20:46:06,594 INFO L226 Difference]: Without dead ends: 1072 [2020-10-25 20:46:06,596 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 20:46:06,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-10-25 20:46:06,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-10-25 20:46:06,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-25 20:46:06,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-10-25 20:46:06,622 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 223 [2020-10-25 20:46:06,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:06,623 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-10-25 20:46:06,623 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:06,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-10-25 20:46:06,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-25 20:46:06,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:06,627 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:06,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 20:46:06,628 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:06,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1996075083, now seen corresponding path program 1 times [2020-10-25 20:46:06,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:06,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938451025] [2020-10-25 20:46:06,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:06,971 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 123 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:06,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938451025] [2020-10-25 20:46:06,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522574721] [2020-10-25 20:46:06,973 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 20:46:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:07,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:07,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-10-25 20:46:07,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:07,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-25 20:46:07,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656089431] [2020-10-25 20:46:07,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:07,290 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:07,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:07,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:07,293 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-10-25 20:46:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:08,772 INFO L93 Difference]: Finished difference Result 2498 states and 3033 transitions. [2020-10-25 20:46:08,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:08,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-10-25 20:46:08,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:08,781 INFO L225 Difference]: With dead ends: 2498 [2020-10-25 20:46:08,781 INFO L226 Difference]: Without dead ends: 1428 [2020-10-25 20:46:08,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-10-25 20:46:08,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1072. [2020-10-25 20:46:08,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-10-25 20:46:08,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2020-10-25 20:46:08,814 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 235 [2020-10-25 20:46:08,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:08,815 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2020-10-25 20:46:08,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2020-10-25 20:46:08,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-25 20:46:08,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:08,820 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:09,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:09,035 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:09,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:09,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1790632812, now seen corresponding path program 1 times [2020-10-25 20:46:09,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:09,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577034474] [2020-10-25 20:46:09,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 20:46:09,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577034474] [2020-10-25 20:46:09,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:09,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:09,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148742371] [2020-10-25 20:46:09,235 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:09,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:09,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:09,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:09,236 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand 3 states. [2020-10-25 20:46:10,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:10,659 INFO L93 Difference]: Finished difference Result 2676 states and 3213 transitions. [2020-10-25 20:46:10,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:10,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2020-10-25 20:46:10,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:10,672 INFO L225 Difference]: With dead ends: 2676 [2020-10-25 20:46:10,672 INFO L226 Difference]: Without dead ends: 1606 [2020-10-25 20:46:10,675 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 20:46:10,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-10-25 20:46:10,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-10-25 20:46:10,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-10-25 20:46:10,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 1858 transitions. [2020-10-25 20:46:10,717 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 1858 transitions. Word has length 238 [2020-10-25 20:46:10,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:10,718 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 1858 transitions. [2020-10-25 20:46:10,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:10,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 1858 transitions. [2020-10-25 20:46:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-25 20:46:10,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:10,726 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:10,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 20:46:10,727 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:10,727 INFO L82 PathProgramCache]: Analyzing trace with hash 261912130, now seen corresponding path program 1 times [2020-10-25 20:46:10,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:10,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802767522] [2020-10-25 20:46:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 240 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-10-25 20:46:11,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802767522] [2020-10-25 20:46:11,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15012018] [2020-10-25 20:46:11,330 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 20:46:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:11,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:11,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:11,787 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-10-25 20:46:11,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:11,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-10-25 20:46:11,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682797807] [2020-10-25 20:46:11,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:11,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:11,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:11,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:11,796 INFO L87 Difference]: Start difference. First operand 1606 states and 1858 transitions. Second operand 3 states. [2020-10-25 20:46:13,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:13,284 INFO L93 Difference]: Finished difference Result 3566 states and 4204 transitions. [2020-10-25 20:46:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:13,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 357 [2020-10-25 20:46:13,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:13,296 INFO L225 Difference]: With dead ends: 3566 [2020-10-25 20:46:13,296 INFO L226 Difference]: Without dead ends: 2140 [2020-10-25 20:46:13,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-25 20:46:13,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-10-25 20:46:13,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-10-25 20:46:13,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-25 20:46:13,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2222 transitions. [2020-10-25 20:46:13,358 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2222 transitions. Word has length 357 [2020-10-25 20:46:13,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:13,359 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2222 transitions. [2020-10-25 20:46:13,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2222 transitions. [2020-10-25 20:46:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-25 20:46:13,369 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:13,370 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-25 20:46:13,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:13,584 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:13,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:13,586 INFO L82 PathProgramCache]: Analyzing trace with hash -38524622, now seen corresponding path program 1 times [2020-10-25 20:46:13,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:13,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65339344] [2020-10-25 20:46:13,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 450 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2020-10-25 20:46:14,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65339344] [2020-10-25 20:46:14,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:14,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:14,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313081781] [2020-10-25 20:46:14,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 20:46:14,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:14,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 20:46:14,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 20:46:14,048 INFO L87 Difference]: Start difference. First operand 1962 states and 2222 transitions. Second operand 4 states. [2020-10-25 20:46:15,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:15,711 INFO L93 Difference]: Finished difference Result 3951 states and 4494 transitions. [2020-10-25 20:46:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 20:46:15,712 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 434 [2020-10-25 20:46:15,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:15,723 INFO L225 Difference]: With dead ends: 3951 [2020-10-25 20:46:15,724 INFO L226 Difference]: Without dead ends: 2140 [2020-10-25 20:46:15,729 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 20:46:15,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-10-25 20:46:15,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 1962. [2020-10-25 20:46:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2020-10-25 20:46:15,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2126 transitions. [2020-10-25 20:46:15,796 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2126 transitions. Word has length 434 [2020-10-25 20:46:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:15,797 INFO L481 AbstractCegarLoop]: Abstraction has 1962 states and 2126 transitions. [2020-10-25 20:46:15,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 20:46:15,798 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2126 transitions. [2020-10-25 20:46:15,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2020-10-25 20:46:15,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:15,803 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:15,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 20:46:15,804 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:15,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:15,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1491092873, now seen corresponding path program 1 times [2020-10-25 20:46:15,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:15,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348181626] [2020-10-25 20:46:15,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:15,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:46:16,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348181626] [2020-10-25 20:46:16,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:16,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:16,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190888565] [2020-10-25 20:46:16,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:16,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:16,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:16,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:16,278 INFO L87 Difference]: Start difference. First operand 1962 states and 2126 transitions. Second operand 3 states. [2020-10-25 20:46:17,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:17,657 INFO L93 Difference]: Finished difference Result 4278 states and 4711 transitions. [2020-10-25 20:46:17,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:17,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 457 [2020-10-25 20:46:17,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:17,671 INFO L225 Difference]: With dead ends: 4278 [2020-10-25 20:46:17,671 INFO L226 Difference]: Without dead ends: 2496 [2020-10-25 20:46:17,675 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 20:46:17,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2020-10-25 20:46:17,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2020-10-25 20:46:17,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2496 states. [2020-10-25 20:46:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2678 transitions. [2020-10-25 20:46:17,727 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2678 transitions. Word has length 457 [2020-10-25 20:46:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:17,728 INFO L481 AbstractCegarLoop]: Abstraction has 2496 states and 2678 transitions. [2020-10-25 20:46:17,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2678 transitions. [2020-10-25 20:46:17,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-10-25 20:46:17,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:17,735 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:17,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 20:46:17,735 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:17,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:17,736 INFO L82 PathProgramCache]: Analyzing trace with hash 738319008, now seen corresponding path program 1 times [2020-10-25 20:46:17,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:17,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559875119] [2020-10-25 20:46:17,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2020-10-25 20:46:18,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559875119] [2020-10-25 20:46:18,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:18,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:18,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634403869] [2020-10-25 20:46:18,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:18,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:18,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:18,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:18,401 INFO L87 Difference]: Start difference. First operand 2496 states and 2678 transitions. Second operand 3 states. [2020-10-25 20:46:19,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:19,837 INFO L93 Difference]: Finished difference Result 5524 states and 6005 transitions. [2020-10-25 20:46:19,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:19,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 612 [2020-10-25 20:46:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:19,850 INFO L225 Difference]: With dead ends: 5524 [2020-10-25 20:46:19,850 INFO L226 Difference]: Without dead ends: 3208 [2020-10-25 20:46:19,854 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 20:46:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-10-25 20:46:19,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3030. [2020-10-25 20:46:19,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-10-25 20:46:19,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3244 transitions. [2020-10-25 20:46:19,910 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3244 transitions. Word has length 612 [2020-10-25 20:46:19,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:19,911 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 3244 transitions. [2020-10-25 20:46:19,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:19,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3244 transitions. [2020-10-25 20:46:19,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2020-10-25 20:46:19,918 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:19,918 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:19,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 20:46:19,919 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:19,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:19,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1493090989, now seen corresponding path program 1 times [2020-10-25 20:46:19,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:19,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4660617] [2020-10-25 20:46:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:20,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 845 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-10-25 20:46:20,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4660617] [2020-10-25 20:46:20,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 20:46:20,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 20:46:20,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141182814] [2020-10-25 20:46:20,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:20,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:20,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:20,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 20:46:20,561 INFO L87 Difference]: Start difference. First operand 3030 states and 3244 transitions. Second operand 3 states. [2020-10-25 20:46:21,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:21,942 INFO L93 Difference]: Finished difference Result 7126 states and 7682 transitions. [2020-10-25 20:46:21,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:21,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 630 [2020-10-25 20:46:21,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:21,964 INFO L225 Difference]: With dead ends: 7126 [2020-10-25 20:46:21,964 INFO L226 Difference]: Without dead ends: 4276 [2020-10-25 20:46:21,970 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 20:46:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2020-10-25 20:46:22,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 3742. [2020-10-25 20:46:22,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2020-10-25 20:46:22,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 3996 transitions. [2020-10-25 20:46:22,060 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 3996 transitions. Word has length 630 [2020-10-25 20:46:22,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:22,061 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 3996 transitions. [2020-10-25 20:46:22,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:22,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 3996 transitions. [2020-10-25 20:46:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2020-10-25 20:46:22,069 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:22,069 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:22,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 20:46:22,070 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:22,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:22,071 INFO L82 PathProgramCache]: Analyzing trace with hash -233613869, now seen corresponding path program 1 times [2020-10-25 20:46:22,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:22,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227950282] [2020-10-25 20:46:22,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 952 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2020-10-25 20:46:22,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227950282] [2020-10-25 20:46:22,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804818444] [2020-10-25 20:46:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:23,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:23,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:23,423 INFO L134 CoverageAnalysis]: Checked inductivity of 1376 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2020-10-25 20:46:23,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:23,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:46:23,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658176162] [2020-10-25 20:46:23,425 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:23,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:23,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:23,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:23,426 INFO L87 Difference]: Start difference. First operand 3742 states and 3996 transitions. Second operand 3 states. [2020-10-25 20:46:24,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:24,786 INFO L93 Difference]: Finished difference Result 8372 states and 8942 transitions. [2020-10-25 20:46:24,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:24,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 653 [2020-10-25 20:46:24,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:24,804 INFO L225 Difference]: With dead ends: 8372 [2020-10-25 20:46:24,804 INFO L226 Difference]: Without dead ends: 4098 [2020-10-25 20:46:24,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:24,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-10-25 20:46:24,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 3920. [2020-10-25 20:46:24,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-10-25 20:46:24,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4163 transitions. [2020-10-25 20:46:24,900 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4163 transitions. Word has length 653 [2020-10-25 20:46:24,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:24,900 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 4163 transitions. [2020-10-25 20:46:24,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:24,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4163 transitions. [2020-10-25 20:46:24,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2020-10-25 20:46:24,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:24,911 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, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:25,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:25,125 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:25,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:25,126 INFO L82 PathProgramCache]: Analyzing trace with hash 833101446, now seen corresponding path program 1 times [2020-10-25 20:46:25,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:25,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040865075] [2020-10-25 20:46:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:25,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 1346 proven. 110 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-10-25 20:46:25,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040865075] [2020-10-25 20:46:25,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668669142] [2020-10-25 20:46:25,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:26,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:26,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1832 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2020-10-25 20:46:26,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:26,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:46:26,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215867683] [2020-10-25 20:46:26,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:26,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:26,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:26,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:26,502 INFO L87 Difference]: Start difference. First operand 3920 states and 4163 transitions. Second operand 3 states. [2020-10-25 20:46:27,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:27,882 INFO L93 Difference]: Finished difference Result 8728 states and 9325 transitions. [2020-10-25 20:46:27,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:27,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 732 [2020-10-25 20:46:27,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:27,905 INFO L225 Difference]: With dead ends: 8728 [2020-10-25 20:46:27,905 INFO L226 Difference]: Without dead ends: 4988 [2020-10-25 20:46:27,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:27,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2020-10-25 20:46:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4276. [2020-10-25 20:46:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-10-25 20:46:27,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4545 transitions. [2020-10-25 20:46:27,991 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4545 transitions. Word has length 732 [2020-10-25 20:46:27,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:27,992 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4545 transitions. [2020-10-25 20:46:27,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:27,992 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4545 transitions. [2020-10-25 20:46:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 745 [2020-10-25 20:46:28,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:28,001 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, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:28,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-10-25 20:46:28,215 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:28,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:28,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1545526936, now seen corresponding path program 1 times [2020-10-25 20:46:28,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:28,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192116956] [2020-10-25 20:46:28,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:28,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1406 proven. 110 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2020-10-25 20:46:28,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192116956] [2020-10-25 20:46:28,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435713363] [2020-10-25 20:46:28,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:29,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:29,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:29,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 371 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2020-10-25 20:46:29,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:29,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:46:29,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481258597] [2020-10-25 20:46:29,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:29,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:29,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:29,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:29,679 INFO L87 Difference]: Start difference. First operand 4276 states and 4545 transitions. Second operand 3 states. [2020-10-25 20:46:30,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:30,900 INFO L93 Difference]: Finished difference Result 5346 states and 5659 transitions. [2020-10-25 20:46:30,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:30,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 744 [2020-10-25 20:46:30,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:30,913 INFO L225 Difference]: With dead ends: 5346 [2020-10-25 20:46:30,914 INFO L226 Difference]: Without dead ends: 5344 [2020-10-25 20:46:30,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 744 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:30,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2020-10-25 20:46:30,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4276. [2020-10-25 20:46:30,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4276 states. [2020-10-25 20:46:30,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 4543 transitions. [2020-10-25 20:46:30,987 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 4543 transitions. Word has length 744 [2020-10-25 20:46:30,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:30,988 INFO L481 AbstractCegarLoop]: Abstraction has 4276 states and 4543 transitions. [2020-10-25 20:46:30,988 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:30,988 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 4543 transitions. [2020-10-25 20:46:30,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2020-10-25 20:46:30,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 20:46:31,000 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 20:46:31,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:31,215 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 20:46:31,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 20:46:31,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1060960162, now seen corresponding path program 1 times [2020-10-25 20:46:31,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 20:46:31,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759283982] [2020-10-25 20:46:31,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 20:46:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2453 backedges. 1835 proven. 110 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2020-10-25 20:46:31,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759283982] [2020-10-25 20:46:31,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730941530] [2020-10-25 20:46:31,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-25 20:46:32,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 20:46:32,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-25 20:46:32,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 20:46:32,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2453 backedges. 433 proven. 0 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2020-10-25 20:46:32,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-25 20:46:32,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-25 20:46:32,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126014782] [2020-10-25 20:46:32,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 20:46:32,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 20:46:32,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 20:46:32,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:32,781 INFO L87 Difference]: Start difference. First operand 4276 states and 4543 transitions. Second operand 3 states. [2020-10-25 20:46:34,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 20:46:34,071 INFO L93 Difference]: Finished difference Result 8370 states and 8907 transitions. [2020-10-25 20:46:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 20:46:34,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 831 [2020-10-25 20:46:34,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 20:46:34,073 INFO L225 Difference]: With dead ends: 8370 [2020-10-25 20:46:34,073 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 20:46:34,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 834 GetRequests, 831 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-25 20:46:34,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 20:46:34,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 20:46:34,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 20:46:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 20:46:34,082 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 831 [2020-10-25 20:46:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 20:46:34,082 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 20:46:34,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 20:46:34,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 20:46:34,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 20:46:34,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-25 20:46:34,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 20:46:34,940 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-25 20:46:35,454 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-10-25 20:46:35,459 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-25 20:46:35,459 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-25 20:46:35,460 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-25 20:46:35,460 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-25 20:46:35,460 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-25 20:46:35,460 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-25 20:46:35,460 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-25 20:46:35,461 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,461 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,461 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,461 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,462 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,463 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,464 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,465 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-25 20:46:35,466 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,467 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,469 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,469 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-25 20:46:35,469 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-25 20:46:35,469 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-25 20:46:35,470 INFO L274 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-25 20:46:35,471 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-25 20:46:35,472 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-25 20:46:35,473 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-25 20:46:35,473 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-25 20:46:35,473 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-25 20:46:35,473 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-25 20:46:35,473 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-25 20:46:35,474 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-25 20:46:35,475 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-25 20:46:35,476 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-25 20:46:35,477 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,477 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,477 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-25 20:46:35,477 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-25 20:46:35,477 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-25 20:46:35,478 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-25 20:46:35,478 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-25 20:46:35,478 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-25 20:46:35,478 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,478 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,478 INFO L270 CegarLoopResult]: At program point L873(lines 22 874) the Hoare annotation is: (let ((.cse3 (+ ~a12~0 43))) (let ((.cse2 (<= 7 ~a15~0)) (.cse0 (<= ~a15~0 5)) (.cse5 (<= 9 ~a21~0)) (.cse7 (<= .cse3 0)) (.cse8 (<= ~a15~0 8)) (.cse6 (<= ~a21~0 9)) (.cse4 (<= 10 ~a21~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and (< 0 .cse3) (<= ~a12~0 11) .cse1 .cse4) (and .cse5 .cse1 .cse6) (and .cse7 .cse2 .cse8 .cse4) (and .cse0 .cse7) (and .cse5 .cse7 .cse8 .cse6) (and .cse1 (<= ~a21~0 6)) (and (<= (+ ~a12~0 49) 0) .cse1 .cse4) (and (<= 8 ~a21~0) .cse1 (<= ~a21~0 8))))) [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,479 INFO L277 CegarLoopResult]: At program point L876(lines 876 892) the Hoare annotation is: true [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-25 20:46:35,480 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-25 20:46:35,481 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse3 (+ ~a12~0 43))) (let ((.cse2 (<= 7 ~a15~0)) (.cse0 (<= ~a15~0 5)) (.cse5 (<= 9 ~a21~0)) (.cse7 (<= .cse3 0)) (.cse8 (<= ~a15~0 8)) (.cse6 (<= ~a21~0 9)) (.cse4 (<= 10 ~a21~0)) (.cse1 (= ~a24~0 1))) (or (and .cse0 .cse1) (and .cse2 .cse1) (and (< 0 .cse3) (<= ~a12~0 11) .cse1 .cse4) (and .cse5 .cse1 .cse6) (and .cse7 .cse2 .cse8 .cse4) (and .cse0 .cse7) (and .cse5 .cse7 .cse8 .cse6) (and .cse1 (<= ~a21~0 6)) (and (<= (+ ~a12~0 49) 0) .cse1 .cse4) (and (<= 8 ~a21~0) .cse1 (<= ~a21~0 8))))) [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,482 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-25 20:46:35,483 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,484 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-25 20:46:35,485 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,486 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,486 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-25 20:46:35,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 08:46:35 BoogieIcfgContainer [2020-10-25 20:46:35,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 20:46:35,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 20:46:35,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 20:46:35,513 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 20:46:35,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 08:45:55" (3/4) ... [2020-10-25 20:46:35,518 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 20:46:35,549 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 20:46:35,551 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 20:46:35,553 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:46:35,554 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 20:46:35,771 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 20:46:35,772 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 20:46:35,773 INFO L168 Benchmark]: Toolchain (without parser) took 43730.45 ms. Allocated memory was 52.4 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 38.0 MB in the beginning and 652.5 MB in the end (delta: -614.5 MB). Peak memory consumption was 498.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:35,774 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 37.7 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 20:46:35,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 888.31 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 37.3 MB in the beginning and 40.5 MB in the end (delta: -3.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:35,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.44 ms. Allocated memory is still 62.9 MB. Free memory was 40.5 MB in the beginning and 30.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:35,775 INFO L168 Benchmark]: Boogie Preprocessor took 147.98 ms. Allocated memory is still 62.9 MB. Free memory was 30.8 MB in the beginning and 36.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:35,776 INFO L168 Benchmark]: RCFGBuilder took 2264.46 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 35.8 MB in the beginning and 43.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:35,777 INFO L168 Benchmark]: TraceAbstraction took 40002.65 ms. Allocated memory was 86.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 43.4 MB in the beginning and 672.4 MB in the end (delta: -629.1 MB). Peak memory consumption was 449.9 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:35,777 INFO L168 Benchmark]: Witness Printer took 258.98 ms. Allocated memory is still 1.2 GB. Free memory was 672.4 MB in the beginning and 652.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-10-25 20:46:35,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 37.7 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 888.31 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 37.3 MB in the beginning and 40.5 MB in the end (delta: -3.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 154.44 ms. Allocated memory is still 62.9 MB. Free memory was 40.5 MB in the beginning and 30.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 147.98 ms. Allocated memory is still 62.9 MB. Free memory was 30.8 MB in the beginning and 36.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2264.46 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 35.8 MB in the beginning and 43.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 33.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 40002.65 ms. Allocated memory was 86.0 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 43.4 MB in the beginning and 672.4 MB in the end (delta: -629.1 MB). Peak memory consumption was 449.9 MB. Max. memory is 16.1 GB. * Witness Printer took 258.98 ms. Allocated memory is still 1.2 GB. Free memory was 672.4 MB in the beginning and 652.5 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 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: 22]: Loop Invariant Derived loop invariant: (((((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (((0 < a12 + 43 && a12 <= 11) && a24 == 1) && 10 <= a21)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || (((a12 + 43 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a15 <= 5 && a12 + 43 <= 0)) || (((9 <= a21 && a12 + 43 <= 0) && a15 <= 8) && a21 <= 9)) || (a24 == 1 && a21 <= 6)) || ((a12 + 49 <= 0 && a24 == 1) && 10 <= a21)) || ((8 <= a21 && a24 == 1) && a21 <= 8) - InvariantResult [Line: 876]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((((((a15 <= 5 && a24 == 1) || (7 <= a15 && a24 == 1)) || (((0 < a12 + 43 && a12 <= 11) && a24 == 1) && 10 <= a21)) || ((9 <= a21 && a24 == 1) && a21 <= 9)) || (((a12 + 43 <= 0 && 7 <= a15) && a15 <= 8) && 10 <= a21)) || (a15 <= 5 && a12 + 43 <= 0)) || (((9 <= a21 && a12 + 43 <= 0) && a15 <= 8) && a21 <= 9)) || (a24 == 1 && a21 <= 6)) || ((a12 + 49 <= 0 && a24 == 1) && 10 <= a21)) || ((8 <= a21 && a24 == 1) && a21 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 246 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 38.7s, OverallIterations: 15, TraceHistogramMax: 8, AutomataDifference: 24.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1975 SDtfs, 1956 SDslu, 80 SDs, 0 SdLazy, 7683 SolverSat, 943 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3765 GetRequests, 3730 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4276occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 3738 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 67 NumberOfFragments, 217 HoareAnnotationTreeSize, 3 FomulaSimplifications, 3266 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 578 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 10243 NumberOfCodeBlocks, 10243 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 10221 ConstructedInterpolants, 0 QuantifiedInterpolants, 11463409 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4873 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 20224/20916 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...