./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem02_label51.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 5752af3bf15296390479116aac2b470f0b1b5550 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:31:41,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:31:41,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:31:41,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:31:41,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:31:41,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:31:41,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:31:41,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:31:41,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:31:41,140 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:31:41,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:31:41,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:31:41,146 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:31:41,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:31:41,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:31:41,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:31:41,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:31:41,158 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:31:41,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:31:41,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:31:41,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:31:41,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:31:41,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:31:41,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:31:41,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:31:41,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:31:41,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:31:41,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:31:41,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:31:41,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:31:41,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:31:41,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:31:41,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:31:41,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:31:41,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:31:41,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:31:41,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:31:41,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:31:41,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:31:41,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:31:41,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:31:41,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:31:41,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:31:41,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:31:41,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:31:41,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:31:41,247 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:31:41,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:31:41,247 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:31:41,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:31:41,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:31:41,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:31:41,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:31:41,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:31:41,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:31:41,249 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:31:41,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:31:41,249 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:31:41,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:31:41,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:31:41,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:31:41,251 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:31:41,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:31:41,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:31:41,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:31:41,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:31:41,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:31:41,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:31:41,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:31:41,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:31:41,253 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:31:41,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5752af3bf15296390479116aac2b470f0b1b5550 [2020-10-19 22:31:41,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:31:41,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:31:41,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:31:41,479 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:31:41,482 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:31:41,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label51.c [2020-10-19 22:31:41,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a773057/9fcd2ad87bba4034ab974b60dd44577f/FLAG603bb96df [2020-10-19 22:31:42,255 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:31:42,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label51.c [2020-10-19 22:31:42,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a773057/9fcd2ad87bba4034ab974b60dd44577f/FLAG603bb96df [2020-10-19 22:31:42,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a773057/9fcd2ad87bba4034ab974b60dd44577f [2020-10-19 22:31:42,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:31:42,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:31:42,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:42,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:31:42,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:31:42,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:42" (1/1) ... [2020-10-19 22:31:42,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68631ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:42, skipping insertion in model container [2020-10-19 22:31:42,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:31:42" (1/1) ... [2020-10-19 22:31:42,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:31:42,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:31:43,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:43,024 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:31:43,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:31:43,161 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:31:43,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43 WrapperNode [2020-10-19 22:31:43,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:31:43,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:43,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:31:43,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:31:43,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,191 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:31:43,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:31:43,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:31:43,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:31:43,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... [2020-10-19 22:31:43,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:31:43,337 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:31:43,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:31:43,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:31:43,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:31:43,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:31:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:31:43,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:31:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:31:44,715 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:31:44,716 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:31:44,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:44 BoogieIcfgContainer [2020-10-19 22:31:44,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:31:44,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:31:44,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:31:44,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:31:44,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:31:42" (1/3) ... [2020-10-19 22:31:44,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffe20d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:44, skipping insertion in model container [2020-10-19 22:31:44,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:31:43" (2/3) ... [2020-10-19 22:31:44,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ffe20d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:31:44, skipping insertion in model container [2020-10-19 22:31:44,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:44" (3/3) ... [2020-10-19 22:31:44,727 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label51.c [2020-10-19 22:31:44,739 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:31:44,748 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:31:44,764 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:31:44,792 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:31:44,793 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:31:44,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:31:44,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:31:44,794 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:31:44,794 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:31:44,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:31:44,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:31:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states. [2020-10-19 22:31:44,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-19 22:31:44,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:44,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:44,832 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:44,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:44,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1025900355, now seen corresponding path program 1 times [2020-10-19 22:31:44,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:44,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094893733] [2020-10-19 22:31:44,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:45,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094893733] [2020-10-19 22:31:45,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:45,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:45,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812667484] [2020-10-19 22:31:45,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:45,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:45,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:45,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:45,385 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 3 states. [2020-10-19 22:31:46,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:46,506 INFO L93 Difference]: Finished difference Result 640 states and 1083 transitions. [2020-10-19 22:31:46,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:46,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-10-19 22:31:46,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:46,523 INFO L225 Difference]: With dead ends: 640 [2020-10-19 22:31:46,524 INFO L226 Difference]: Without dead ends: 318 [2020-10-19 22:31:46,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:46,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-19 22:31:46,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 313. [2020-10-19 22:31:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2020-10-19 22:31:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 459 transitions. [2020-10-19 22:31:46,592 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 459 transitions. Word has length 110 [2020-10-19 22:31:46,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:46,593 INFO L481 AbstractCegarLoop]: Abstraction has 313 states and 459 transitions. [2020-10-19 22:31:46,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:46,593 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 459 transitions. [2020-10-19 22:31:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-19 22:31:46,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:46,597 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:46,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:31:46,598 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:46,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:46,598 INFO L82 PathProgramCache]: Analyzing trace with hash 755577322, now seen corresponding path program 1 times [2020-10-19 22:31:46,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:46,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148922683] [2020-10-19 22:31:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:46,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148922683] [2020-10-19 22:31:46,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:46,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:46,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529375561] [2020-10-19 22:31:46,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:46,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:46,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:46,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:46,725 INFO L87 Difference]: Start difference. First operand 313 states and 459 transitions. Second operand 3 states. [2020-10-19 22:31:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:47,342 INFO L93 Difference]: Finished difference Result 910 states and 1341 transitions. [2020-10-19 22:31:47,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:47,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-10-19 22:31:47,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:47,348 INFO L225 Difference]: With dead ends: 910 [2020-10-19 22:31:47,348 INFO L226 Difference]: Without dead ends: 599 [2020-10-19 22:31:47,351 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:47,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2020-10-19 22:31:47,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 596. [2020-10-19 22:31:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2020-10-19 22:31:47,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 772 transitions. [2020-10-19 22:31:47,386 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 772 transitions. Word has length 114 [2020-10-19 22:31:47,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:47,387 INFO L481 AbstractCegarLoop]: Abstraction has 596 states and 772 transitions. [2020-10-19 22:31:47,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:47,387 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 772 transitions. [2020-10-19 22:31:47,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-19 22:31:47,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:47,393 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:47,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:31:47,393 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:47,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:47,394 INFO L82 PathProgramCache]: Analyzing trace with hash -19852233, now seen corresponding path program 1 times [2020-10-19 22:31:47,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:47,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743101033] [2020-10-19 22:31:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:47,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:47,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743101033] [2020-10-19 22:31:47,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596384634] [2020-10-19 22:31:47,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:47,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:47,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:47,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:47,687 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:47,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:47,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:47,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850779269] [2020-10-19 22:31:47,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:47,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:47,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:47,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:47,691 INFO L87 Difference]: Start difference. First operand 596 states and 772 transitions. Second operand 3 states. [2020-10-19 22:31:48,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:48,318 INFO L93 Difference]: Finished difference Result 1476 states and 1965 transitions. [2020-10-19 22:31:48,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:48,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-10-19 22:31:48,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:48,325 INFO L225 Difference]: With dead ends: 1476 [2020-10-19 22:31:48,326 INFO L226 Difference]: Without dead ends: 882 [2020-10-19 22:31:48,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:48,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-10-19 22:31:48,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 881. [2020-10-19 22:31:48,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-10-19 22:31:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1147 transitions. [2020-10-19 22:31:48,356 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1147 transitions. Word has length 119 [2020-10-19 22:31:48,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:48,357 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 1147 transitions. [2020-10-19 22:31:48,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:48,357 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1147 transitions. [2020-10-19 22:31:48,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-19 22:31:48,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:48,362 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:48,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-19 22:31:48,578 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:48,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:48,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1006578455, now seen corresponding path program 1 times [2020-10-19 22:31:48,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:48,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729226327] [2020-10-19 22:31:48,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:48,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:48,664 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-19 22:31:48,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729226327] [2020-10-19 22:31:48,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201220733] [2020-10-19 22:31:48,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:48,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:48,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:48,792 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:31:48,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:48,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-10-19 22:31:48,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608237816] [2020-10-19 22:31:48,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:48,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:48,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:48,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:48,795 INFO L87 Difference]: Start difference. First operand 881 states and 1147 transitions. Second operand 3 states. [2020-10-19 22:31:49,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:49,426 INFO L93 Difference]: Finished difference Result 2040 states and 2662 transitions. [2020-10-19 22:31:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:49,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-10-19 22:31:49,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:49,437 INFO L225 Difference]: With dead ends: 2040 [2020-10-19 22:31:49,437 INFO L226 Difference]: Without dead ends: 1161 [2020-10-19 22:31:49,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:31:49,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1161 states. [2020-10-19 22:31:49,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1161 to 1160. [2020-10-19 22:31:49,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2020-10-19 22:31:49,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1435 transitions. [2020-10-19 22:31:49,480 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1435 transitions. Word has length 135 [2020-10-19 22:31:49,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:49,482 INFO L481 AbstractCegarLoop]: Abstraction has 1160 states and 1435 transitions. [2020-10-19 22:31:49,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:49,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1435 transitions. [2020-10-19 22:31:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-19 22:31:49,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:49,493 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:49,708 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:49,709 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:49,710 INFO L82 PathProgramCache]: Analyzing trace with hash 797584178, now seen corresponding path program 1 times [2020-10-19 22:31:49,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:49,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403627048] [2020-10-19 22:31:49,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:49,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403627048] [2020-10-19 22:31:49,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:49,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:49,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770212060] [2020-10-19 22:31:49,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:49,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:49,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:49,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:49,830 INFO L87 Difference]: Start difference. First operand 1160 states and 1435 transitions. Second operand 3 states. [2020-10-19 22:31:50,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:50,639 INFO L93 Difference]: Finished difference Result 2601 states and 3243 transitions. [2020-10-19 22:31:50,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:50,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-10-19 22:31:50,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:50,650 INFO L225 Difference]: With dead ends: 2601 [2020-10-19 22:31:50,651 INFO L226 Difference]: Without dead ends: 1443 [2020-10-19 22:31:50,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:50,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2020-10-19 22:31:50,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1440. [2020-10-19 22:31:50,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2020-10-19 22:31:50,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1740 transitions. [2020-10-19 22:31:50,709 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1740 transitions. Word has length 135 [2020-10-19 22:31:50,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:50,710 INFO L481 AbstractCegarLoop]: Abstraction has 1440 states and 1740 transitions. [2020-10-19 22:31:50,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:50,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1740 transitions. [2020-10-19 22:31:50,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-10-19 22:31:50,715 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:50,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:50,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:31:50,716 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:50,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:50,717 INFO L82 PathProgramCache]: Analyzing trace with hash -988946809, now seen corresponding path program 1 times [2020-10-19 22:31:50,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:50,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864552125] [2020-10-19 22:31:50,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:50,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864552125] [2020-10-19 22:31:50,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:50,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-19 22:31:50,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113740943] [2020-10-19 22:31:50,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:50,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:50,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:50,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:50,851 INFO L87 Difference]: Start difference. First operand 1440 states and 1740 transitions. Second operand 3 states. [2020-10-19 22:31:51,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:51,541 INFO L93 Difference]: Finished difference Result 3997 states and 4858 transitions. [2020-10-19 22:31:51,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:51,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-10-19 22:31:51,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:51,555 INFO L225 Difference]: With dead ends: 3997 [2020-10-19 22:31:51,555 INFO L226 Difference]: Without dead ends: 2559 [2020-10-19 22:31:51,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:51,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2020-10-19 22:31:51,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2559. [2020-10-19 22:31:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2559 states. [2020-10-19 22:31:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 3013 transitions. [2020-10-19 22:31:51,638 INFO L78 Accepts]: Start accepts. Automaton has 2559 states and 3013 transitions. Word has length 138 [2020-10-19 22:31:51,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:51,639 INFO L481 AbstractCegarLoop]: Abstraction has 2559 states and 3013 transitions. [2020-10-19 22:31:51,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:51,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2559 states and 3013 transitions. [2020-10-19 22:31:51,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-19 22:31:51,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:51,645 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:51,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:31:51,646 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:51,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:51,646 INFO L82 PathProgramCache]: Analyzing trace with hash 809319700, now seen corresponding path program 1 times [2020-10-19 22:31:51,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:51,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969061046] [2020-10-19 22:31:51,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:51,760 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:51,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969061046] [2020-10-19 22:31:51,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138860412] [2020-10-19 22:31:51,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:51,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:31:51,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:31:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-19 22:31:51,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:31:51,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2020-10-19 22:31:51,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705822142] [2020-10-19 22:31:51,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:51,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:51,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:51,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:51,977 INFO L87 Difference]: Start difference. First operand 2559 states and 3013 transitions. Second operand 3 states. [2020-10-19 22:31:52,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:52,609 INFO L93 Difference]: Finished difference Result 5540 states and 6580 transitions. [2020-10-19 22:31:52,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:52,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 143 [2020-10-19 22:31:52,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:52,627 INFO L225 Difference]: With dead ends: 5540 [2020-10-19 22:31:52,628 INFO L226 Difference]: Without dead ends: 2983 [2020-10-19 22:31:52,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:31:52,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2020-10-19 22:31:52,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2699. [2020-10-19 22:31:52,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2699 states. [2020-10-19 22:31:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3168 transitions. [2020-10-19 22:31:52,713 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3168 transitions. Word has length 143 [2020-10-19 22:31:52,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:52,713 INFO L481 AbstractCegarLoop]: Abstraction has 2699 states and 3168 transitions. [2020-10-19 22:31:52,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:52,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3168 transitions. [2020-10-19 22:31:52,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-19 22:31:52,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:31:52,726 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:31:52,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:31:52,940 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:31:52,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:31:52,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1245511965, now seen corresponding path program 1 times [2020-10-19 22:31:52,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:31:52,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870436047] [2020-10-19 22:31:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:31:52,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:31:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:31:53,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870436047] [2020-10-19 22:31:53,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:31:53,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:31:53,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972609330] [2020-10-19 22:31:53,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:31:53,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:31:53,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:31:53,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:53,086 INFO L87 Difference]: Start difference. First operand 2699 states and 3168 transitions. Second operand 3 states. [2020-10-19 22:31:53,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:31:53,683 INFO L93 Difference]: Finished difference Result 5253 states and 6142 transitions. [2020-10-19 22:31:53,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:31:53,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-10-19 22:31:53,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:31:53,685 INFO L225 Difference]: With dead ends: 5253 [2020-10-19 22:31:53,685 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:31:53,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:31:53,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:31:53,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:31:53,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:31:53,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:31:53,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2020-10-19 22:31:53,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:31:53,693 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:31:53,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:31:53,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:31:53,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:31:53,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:31:53,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:31:53,811 INFO L274 CegarLoopResult]: For program point L564(line 564) no Hoare annotation was computed. [2020-10-19 22:31:53,811 INFO L274 CegarLoopResult]: For program point L498(line 498) no Hoare annotation was computed. [2020-10-19 22:31:53,812 INFO L274 CegarLoopResult]: For program point L432(line 432) no Hoare annotation was computed. [2020-10-19 22:31:53,812 INFO L274 CegarLoopResult]: For program point L300(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:53,813 INFO L274 CegarLoopResult]: For program point L234(lines 234 415) no Hoare annotation was computed. [2020-10-19 22:31:53,813 INFO L274 CegarLoopResult]: For program point L300-2(lines 300 309) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L37(lines 37 415) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L566-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L500-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L434-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L236(lines 236 415) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L567(line 567) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L501(line 501) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L435(line 435) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L171(lines 171 415) no Hoare annotation was computed. [2020-10-19 22:31:53,814 INFO L274 CegarLoopResult]: For program point L370(lines 370 415) no Hoare annotation was computed. [2020-10-19 22:31:53,815 INFO L274 CegarLoopResult]: For program point L40(lines 40 415) no Hoare annotation was computed. [2020-10-19 22:31:53,815 INFO L274 CegarLoopResult]: For program point L569-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,815 INFO L274 CegarLoopResult]: For program point L503-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,815 INFO L274 CegarLoopResult]: For program point L437-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,816 INFO L274 CegarLoopResult]: For program point L239(lines 239 415) no Hoare annotation was computed. [2020-10-19 22:31:53,816 INFO L274 CegarLoopResult]: For program point L570(line 570) no Hoare annotation was computed. [2020-10-19 22:31:53,816 INFO L274 CegarLoopResult]: For program point L504(line 504) no Hoare annotation was computed. [2020-10-19 22:31:53,816 INFO L274 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-10-19 22:31:53,816 INFO L274 CegarLoopResult]: For program point L240(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:53,817 INFO L274 CegarLoopResult]: For program point L240-2(lines 240 248) no Hoare annotation was computed. [2020-10-19 22:31:53,817 INFO L274 CegarLoopResult]: For program point L108(lines 108 415) no Hoare annotation was computed. [2020-10-19 22:31:53,817 INFO L274 CegarLoopResult]: For program point L572-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,817 INFO L274 CegarLoopResult]: For program point L506-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,817 INFO L274 CegarLoopResult]: For program point L440-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,818 INFO L274 CegarLoopResult]: For program point L44(lines 44 415) no Hoare annotation was computed. [2020-10-19 22:31:53,818 INFO L274 CegarLoopResult]: For program point L573(line 573) no Hoare annotation was computed. [2020-10-19 22:31:53,818 INFO L274 CegarLoopResult]: For program point L507(line 507) no Hoare annotation was computed. [2020-10-19 22:31:53,818 INFO L274 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-10-19 22:31:53,818 INFO L274 CegarLoopResult]: For program point L177(lines 177 415) no Hoare annotation was computed. [2020-10-19 22:31:53,818 INFO L274 CegarLoopResult]: For program point L575-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,819 INFO L274 CegarLoopResult]: For program point L509-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,819 INFO L274 CegarLoopResult]: For program point L443-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,819 INFO L274 CegarLoopResult]: For program point L377(lines 377 415) no Hoare annotation was computed. [2020-10-19 22:31:53,819 INFO L274 CegarLoopResult]: For program point L311(lines 311 415) no Hoare annotation was computed. [2020-10-19 22:31:53,819 INFO L274 CegarLoopResult]: For program point L576(line 576) no Hoare annotation was computed. [2020-10-19 22:31:53,820 INFO L274 CegarLoopResult]: For program point L510(line 510) no Hoare annotation was computed. [2020-10-19 22:31:53,820 INFO L274 CegarLoopResult]: For program point L444(line 444) no Hoare annotation was computed. [2020-10-19 22:31:53,820 INFO L274 CegarLoopResult]: For program point L181(lines 181 415) no Hoare annotation was computed. [2020-10-19 22:31:53,820 INFO L274 CegarLoopResult]: For program point L115(lines 115 415) no Hoare annotation was computed. [2020-10-19 22:31:53,820 INFO L274 CegarLoopResult]: For program point L49(lines 49 415) no Hoare annotation was computed. [2020-10-19 22:31:53,820 INFO L274 CegarLoopResult]: For program point L578-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,821 INFO L274 CegarLoopResult]: For program point L512-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,821 INFO L274 CegarLoopResult]: For program point L446-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,821 INFO L274 CegarLoopResult]: For program point L380(lines 380 415) no Hoare annotation was computed. [2020-10-19 22:31:53,821 INFO L274 CegarLoopResult]: For program point L579(line 579) no Hoare annotation was computed. [2020-10-19 22:31:53,821 INFO L274 CegarLoopResult]: For program point L513(line 513) no Hoare annotation was computed. [2020-10-19 22:31:53,821 INFO L274 CegarLoopResult]: For program point L447(line 447) no Hoare annotation was computed. [2020-10-19 22:31:53,822 INFO L274 CegarLoopResult]: For program point L382(lines 382 415) no Hoare annotation was computed. [2020-10-19 22:31:53,822 INFO L274 CegarLoopResult]: For program point L316(lines 316 415) no Hoare annotation was computed. [2020-10-19 22:31:53,822 INFO L274 CegarLoopResult]: For program point L250(lines 250 415) no Hoare annotation was computed. [2020-10-19 22:31:53,822 INFO L274 CegarLoopResult]: For program point L52(lines 52 415) no Hoare annotation was computed. [2020-10-19 22:31:53,822 INFO L274 CegarLoopResult]: For program point L581-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,823 INFO L274 CegarLoopResult]: For program point L515-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,823 INFO L274 CegarLoopResult]: For program point L449-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,823 INFO L274 CegarLoopResult]: For program point L383(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:53,823 INFO L274 CegarLoopResult]: For program point L317(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:53,823 INFO L274 CegarLoopResult]: For program point L383-2(lines 383 389) no Hoare annotation was computed. [2020-10-19 22:31:53,824 INFO L274 CegarLoopResult]: For program point L317-2(lines 317 328) no Hoare annotation was computed. [2020-10-19 22:31:53,824 INFO L274 CegarLoopResult]: For program point L582(line 582) no Hoare annotation was computed. [2020-10-19 22:31:53,824 INFO L274 CegarLoopResult]: For program point L516(line 516) no Hoare annotation was computed. [2020-10-19 22:31:53,824 INFO L274 CegarLoopResult]: For program point L450(line 450) no Hoare annotation was computed. [2020-10-19 22:31:53,824 INFO L274 CegarLoopResult]: For program point L187(lines 187 415) no Hoare annotation was computed. [2020-10-19 22:31:53,825 INFO L274 CegarLoopResult]: For program point L121(lines 121 415) no Hoare annotation was computed. [2020-10-19 22:31:53,825 INFO L274 CegarLoopResult]: For program point L584-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,825 INFO L274 CegarLoopResult]: For program point L518-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,825 INFO L274 CegarLoopResult]: For program point L452-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,825 INFO L274 CegarLoopResult]: For program point L56(lines 56 415) no Hoare annotation was computed. [2020-10-19 22:31:53,825 INFO L274 CegarLoopResult]: For program point L585(line 585) no Hoare annotation was computed. [2020-10-19 22:31:53,826 INFO L274 CegarLoopResult]: For program point L519(line 519) no Hoare annotation was computed. [2020-10-19 22:31:53,826 INFO L274 CegarLoopResult]: For program point L453(line 453) no Hoare annotation was computed. [2020-10-19 22:31:53,826 INFO L274 CegarLoopResult]: For program point L255(lines 255 415) no Hoare annotation was computed. [2020-10-19 22:31:53,826 INFO L274 CegarLoopResult]: For program point L189(lines 189 415) no Hoare annotation was computed. [2020-10-19 22:31:53,826 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:31:53,826 INFO L274 CegarLoopResult]: For program point L587-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,827 INFO L274 CegarLoopResult]: For program point L521-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,827 INFO L274 CegarLoopResult]: For program point L455-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,827 INFO L274 CegarLoopResult]: For program point L191(lines 191 415) no Hoare annotation was computed. [2020-10-19 22:31:53,827 INFO L274 CegarLoopResult]: For program point L125(lines 125 415) no Hoare annotation was computed. [2020-10-19 22:31:53,827 INFO L274 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-19 22:31:53,827 INFO L274 CegarLoopResult]: For program point L522(line 522) no Hoare annotation was computed. [2020-10-19 22:31:53,827 INFO L274 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-10-19 22:31:53,828 INFO L274 CegarLoopResult]: For program point L391(lines 391 415) no Hoare annotation was computed. [2020-10-19 22:31:53,828 INFO L274 CegarLoopResult]: For program point L193(lines 193 415) no Hoare annotation was computed. [2020-10-19 22:31:53,828 INFO L274 CegarLoopResult]: For program point L61(lines 61 415) no Hoare annotation was computed. [2020-10-19 22:31:53,828 INFO L274 CegarLoopResult]: For program point L590-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,828 INFO L274 CegarLoopResult]: For program point L524-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,828 INFO L274 CegarLoopResult]: For program point L458-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,829 INFO L274 CegarLoopResult]: For program point L591(line 591) no Hoare annotation was computed. [2020-10-19 22:31:53,829 INFO L274 CegarLoopResult]: For program point L525(line 525) no Hoare annotation was computed. [2020-10-19 22:31:53,829 INFO L274 CegarLoopResult]: For program point L459(line 459) no Hoare annotation was computed. [2020-10-19 22:31:53,829 INFO L274 CegarLoopResult]: For program point L261(lines 261 415) no Hoare annotation was computed. [2020-10-19 22:31:53,829 INFO L274 CegarLoopResult]: For program point L196(lines 196 415) no Hoare annotation was computed. [2020-10-19 22:31:53,829 INFO L274 CegarLoopResult]: For program point L593-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,830 INFO L274 CegarLoopResult]: For program point L527-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,830 INFO L274 CegarLoopResult]: For program point L461-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,830 INFO L274 CegarLoopResult]: For program point L263(lines 263 415) no Hoare annotation was computed. [2020-10-19 22:31:53,830 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:31:53,830 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-19 22:31:53,831 INFO L274 CegarLoopResult]: For program point L594(line 594) no Hoare annotation was computed. [2020-10-19 22:31:53,831 INFO L274 CegarLoopResult]: For program point L528(line 528) no Hoare annotation was computed. [2020-10-19 22:31:53,831 INFO L274 CegarLoopResult]: For program point L462(line 462) no Hoare annotation was computed. [2020-10-19 22:31:53,831 INFO L274 CegarLoopResult]: For program point L396(lines 396 415) no Hoare annotation was computed. [2020-10-19 22:31:53,831 INFO L274 CegarLoopResult]: For program point L330(lines 330 415) no Hoare annotation was computed. [2020-10-19 22:31:53,831 INFO L274 CegarLoopResult]: For program point L264(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:53,832 INFO L274 CegarLoopResult]: For program point L264-2(lines 264 276) no Hoare annotation was computed. [2020-10-19 22:31:53,832 INFO L274 CegarLoopResult]: For program point L132(lines 132 415) no Hoare annotation was computed. [2020-10-19 22:31:53,832 INFO L274 CegarLoopResult]: For program point L67(lines 67 415) no Hoare annotation was computed. [2020-10-19 22:31:53,832 INFO L274 CegarLoopResult]: For program point L596-1(lines 596 598) no Hoare annotation was computed. [2020-10-19 22:31:53,832 INFO L274 CegarLoopResult]: For program point L530-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,833 INFO L274 CegarLoopResult]: For program point L464-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,833 INFO L274 CegarLoopResult]: For program point L200(lines 200 415) no Hoare annotation was computed. [2020-10-19 22:31:53,833 INFO L274 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-10-19 22:31:53,833 INFO L274 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-10-19 22:31:53,833 INFO L274 CegarLoopResult]: For program point L465(line 465) no Hoare annotation was computed. [2020-10-19 22:31:53,833 INFO L274 CegarLoopResult]: For program point L333(lines 333 415) no Hoare annotation was computed. [2020-10-19 22:31:53,834 INFO L274 CegarLoopResult]: For program point L400(lines 400 415) no Hoare annotation was computed. [2020-10-19 22:31:53,834 INFO L274 CegarLoopResult]: For program point L334(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:53,834 INFO L274 CegarLoopResult]: For program point L334-2(lines 334 337) no Hoare annotation was computed. [2020-10-19 22:31:53,834 INFO L274 CegarLoopResult]: For program point L136(lines 136 415) no Hoare annotation was computed. [2020-10-19 22:31:53,834 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 22:31:53,835 INFO L270 CegarLoopResult]: At program point L599(lines 31 600) the Hoare annotation is: (let ((.cse0 (= ~a25~0 1))) (or (and (<= 9 ~a28~0) .cse0) (and .cse0 (<= ~a28~0 7)) (= ~a25~0 0) (and (= ~a19~0 1) .cse0))) [2020-10-19 22:31:53,835 INFO L274 CegarLoopResult]: For program point L533-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,835 INFO L274 CegarLoopResult]: For program point L467-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,835 INFO L274 CegarLoopResult]: For program point L71(lines 71 415) no Hoare annotation was computed. [2020-10-19 22:31:53,835 INFO L274 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-10-19 22:31:53,836 INFO L274 CegarLoopResult]: For program point L468(line 468) no Hoare annotation was computed. [2020-10-19 22:31:53,836 INFO L274 CegarLoopResult]: For program point L204(lines 204 415) no Hoare annotation was computed. [2020-10-19 22:31:53,836 INFO L274 CegarLoopResult]: For program point L205(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:53,836 INFO L274 CegarLoopResult]: For program point L205-2(lines 205 212) no Hoare annotation was computed. [2020-10-19 22:31:53,836 INFO L277 CegarLoopResult]: At program point L602(lines 602 619) the Hoare annotation is: true [2020-10-19 22:31:53,836 INFO L274 CegarLoopResult]: For program point L536-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,837 INFO L274 CegarLoopResult]: For program point L470-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,837 INFO L274 CegarLoopResult]: For program point L404(lines 404 415) no Hoare annotation was computed. [2020-10-19 22:31:53,837 INFO L274 CegarLoopResult]: For program point L537(line 537) no Hoare annotation was computed. [2020-10-19 22:31:53,837 INFO L274 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-10-19 22:31:53,837 INFO L274 CegarLoopResult]: For program point L339(lines 339 415) no Hoare annotation was computed. [2020-10-19 22:31:53,837 INFO L274 CegarLoopResult]: For program point L141(lines 141 415) no Hoare annotation was computed. [2020-10-19 22:31:53,838 INFO L274 CegarLoopResult]: For program point L406(lines 406 415) no Hoare annotation was computed. [2020-10-19 22:31:53,838 INFO L274 CegarLoopResult]: For program point L340(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:53,838 INFO L274 CegarLoopResult]: For program point L340-2(lines 340 349) no Hoare annotation was computed. [2020-10-19 22:31:53,838 INFO L274 CegarLoopResult]: For program point L76(lines 76 415) no Hoare annotation was computed. [2020-10-19 22:31:53,838 INFO L274 CegarLoopResult]: For program point L539-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,839 INFO L274 CegarLoopResult]: For program point L473-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,839 INFO L274 CegarLoopResult]: For program point L77(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:53,839 INFO L274 CegarLoopResult]: For program point L77-2(lines 77 82) no Hoare annotation was computed. [2020-10-19 22:31:53,839 INFO L274 CegarLoopResult]: For program point L540(line 540) no Hoare annotation was computed. [2020-10-19 22:31:53,839 INFO L274 CegarLoopResult]: For program point L474(line 474) no Hoare annotation was computed. [2020-10-19 22:31:53,839 INFO L274 CegarLoopResult]: For program point L409(lines 409 415) no Hoare annotation was computed. [2020-10-19 22:31:53,840 INFO L274 CegarLoopResult]: For program point L145(lines 145 415) no Hoare annotation was computed. [2020-10-19 22:31:53,840 INFO L270 CegarLoopResult]: At program point L608-2(lines 608 618) the Hoare annotation is: (let ((.cse0 (= ~a25~0 1))) (or (and (<= 9 ~a28~0) .cse0) (and .cse0 (<= ~a28~0 7)) (= ~a25~0 0) (and (= ~a19~0 1) .cse0))) [2020-10-19 22:31:53,840 INFO L274 CegarLoopResult]: For program point L542-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,840 INFO L274 CegarLoopResult]: For program point L476-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,840 INFO L274 CegarLoopResult]: For program point L278(lines 278 415) no Hoare annotation was computed. [2020-10-19 22:31:53,841 INFO L274 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-10-19 22:31:53,841 INFO L274 CegarLoopResult]: For program point L477(line 477) no Hoare annotation was computed. [2020-10-19 22:31:53,841 INFO L274 CegarLoopResult]: For program point L411(lines 411 415) no Hoare annotation was computed. [2020-10-19 22:31:53,841 INFO L274 CegarLoopResult]: For program point L214(lines 214 415) no Hoare annotation was computed. [2020-10-19 22:31:53,841 INFO L274 CegarLoopResult]: For program point L545-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,841 INFO L274 CegarLoopResult]: For program point L479-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,842 INFO L274 CegarLoopResult]: For program point L546(line 546) no Hoare annotation was computed. [2020-10-19 22:31:53,842 INFO L274 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-10-19 22:31:53,842 INFO L274 CegarLoopResult]: For program point L282(lines 282 415) no Hoare annotation was computed. [2020-10-19 22:31:53,842 INFO L274 CegarLoopResult]: For program point L150(lines 150 415) no Hoare annotation was computed. [2020-10-19 22:31:53,842 INFO L274 CegarLoopResult]: For program point L84(lines 84 415) no Hoare annotation was computed. [2020-10-19 22:31:53,842 INFO L274 CegarLoopResult]: For program point L613(line 613) no Hoare annotation was computed. [2020-10-19 22:31:53,843 INFO L274 CegarLoopResult]: For program point L217(lines 217 415) no Hoare annotation was computed. [2020-10-19 22:31:53,843 INFO L274 CegarLoopResult]: For program point L85(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:53,843 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 91) no Hoare annotation was computed. [2020-10-19 22:31:53,843 INFO L274 CegarLoopResult]: For program point L548-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,843 INFO L274 CegarLoopResult]: For program point L482-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,844 INFO L274 CegarLoopResult]: For program point L416(lines 416 418) no Hoare annotation was computed. [2020-10-19 22:31:53,844 INFO L274 CegarLoopResult]: For program point L416-2(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,844 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:31:53,844 INFO L274 CegarLoopResult]: For program point L549(line 549) no Hoare annotation was computed. [2020-10-19 22:31:53,844 INFO L274 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-10-19 22:31:53,844 INFO L274 CegarLoopResult]: For program point L417(line 417) no Hoare annotation was computed. [2020-10-19 22:31:53,845 INFO L274 CegarLoopResult]: For program point L351(lines 351 415) no Hoare annotation was computed. [2020-10-19 22:31:53,845 INFO L274 CegarLoopResult]: For program point L285(lines 285 415) no Hoare annotation was computed. [2020-10-19 22:31:53,845 INFO L274 CegarLoopResult]: For program point L220(lines 220 415) no Hoare annotation was computed. [2020-10-19 22:31:53,845 INFO L274 CegarLoopResult]: For program point L551-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,845 INFO L274 CegarLoopResult]: For program point L485-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,845 INFO L274 CegarLoopResult]: For program point L419-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,846 INFO L274 CegarLoopResult]: For program point L552(line 552) no Hoare annotation was computed. [2020-10-19 22:31:53,846 INFO L274 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-10-19 22:31:53,846 INFO L274 CegarLoopResult]: For program point L420(line 420) no Hoare annotation was computed. [2020-10-19 22:31:53,846 INFO L274 CegarLoopResult]: For program point L288(lines 288 415) no Hoare annotation was computed. [2020-10-19 22:31:53,846 INFO L274 CegarLoopResult]: For program point L156(lines 156 415) no Hoare annotation was computed. [2020-10-19 22:31:53,846 INFO L274 CegarLoopResult]: For program point L554-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,847 INFO L274 CegarLoopResult]: For program point L488-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,847 INFO L274 CegarLoopResult]: For program point L422-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,847 INFO L274 CegarLoopResult]: For program point L356(lines 356 415) no Hoare annotation was computed. [2020-10-19 22:31:53,847 INFO L274 CegarLoopResult]: For program point L555(line 555) no Hoare annotation was computed. [2020-10-19 22:31:53,847 INFO L274 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-10-19 22:31:53,847 INFO L274 CegarLoopResult]: For program point L423(line 423) no Hoare annotation was computed. [2020-10-19 22:31:53,848 INFO L274 CegarLoopResult]: For program point L225(lines 225 415) no Hoare annotation was computed. [2020-10-19 22:31:53,848 INFO L274 CegarLoopResult]: For program point L93(lines 93 415) no Hoare annotation was computed. [2020-10-19 22:31:53,848 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:31:53,848 INFO L274 CegarLoopResult]: For program point L557-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,848 INFO L274 CegarLoopResult]: For program point L491-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,848 INFO L274 CegarLoopResult]: For program point L425-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,849 INFO L274 CegarLoopResult]: For program point L293(lines 293 415) no Hoare annotation was computed. [2020-10-19 22:31:53,849 INFO L274 CegarLoopResult]: For program point L227(lines 227 415) no Hoare annotation was computed. [2020-10-19 22:31:53,849 INFO L274 CegarLoopResult]: For program point L161(lines 161 415) no Hoare annotation was computed. [2020-10-19 22:31:53,849 INFO L274 CegarLoopResult]: For program point L558(line 558) no Hoare annotation was computed. [2020-10-19 22:31:53,849 INFO L274 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-10-19 22:31:53,849 INFO L274 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-10-19 22:31:53,850 INFO L274 CegarLoopResult]: For program point L295(lines 295 415) no Hoare annotation was computed. [2020-10-19 22:31:53,850 INFO L274 CegarLoopResult]: For program point L97(lines 97 415) no Hoare annotation was computed. [2020-10-19 22:31:53,850 INFO L274 CegarLoopResult]: For program point L560-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,850 INFO L274 CegarLoopResult]: For program point L494-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,850 INFO L274 CegarLoopResult]: For program point L428-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,850 INFO L274 CegarLoopResult]: For program point L32(lines 32 415) no Hoare annotation was computed. [2020-10-19 22:31:53,851 INFO L274 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-10-19 22:31:53,851 INFO L274 CegarLoopResult]: For program point L495(line 495) no Hoare annotation was computed. [2020-10-19 22:31:53,851 INFO L274 CegarLoopResult]: For program point L429(line 429) no Hoare annotation was computed. [2020-10-19 22:31:53,851 INFO L274 CegarLoopResult]: For program point L363(lines 363 415) no Hoare annotation was computed. [2020-10-19 22:31:53,851 INFO L274 CegarLoopResult]: For program point L563-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,851 INFO L274 CegarLoopResult]: For program point L497-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,852 INFO L274 CegarLoopResult]: For program point L431-1(lines 31 600) no Hoare annotation was computed. [2020-10-19 22:31:53,852 INFO L274 CegarLoopResult]: For program point L299(lines 299 415) no Hoare annotation was computed. [2020-10-19 22:31:53,852 INFO L274 CegarLoopResult]: For program point L167(lines 167 415) no Hoare annotation was computed. [2020-10-19 22:31:53,852 INFO L274 CegarLoopResult]: For program point L101(lines 101 415) no Hoare annotation was computed. [2020-10-19 22:31:53,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:31:53 BoogieIcfgContainer [2020-10-19 22:31:53,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:31:53,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:31:53,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:31:53,873 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:31:53,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:31:44" (3/4) ... [2020-10-19 22:31:53,877 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:31:53,900 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:31:53,901 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:31:53,903 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:53,904 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:31:54,139 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:31:54,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:31:54,142 INFO L168 Benchmark]: Toolchain (without parser) took 11661.74 ms. Allocated memory was 43.0 MB in the beginning and 135.8 MB in the end (delta: 92.8 MB). Free memory was 23.1 MB in the beginning and 94.5 MB in the end (delta: -71.5 MB). Peak memory consumption was 108.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:54,142 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 33.0 MB. Free memory was 11.6 MB in the beginning and 11.6 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-19 22:31:54,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 676.04 ms. Allocated memory was 43.0 MB in the beginning and 46.1 MB in the end (delta: 3.1 MB). Free memory was 22.3 MB in the beginning and 26.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:54,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.16 ms. Allocated memory is still 46.1 MB. Free memory was 26.2 MB in the beginning and 20.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:54,144 INFO L168 Benchmark]: Boogie Preprocessor took 79.02 ms. Allocated memory is still 46.1 MB. Free memory was 20.5 MB in the beginning and 15.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:54,145 INFO L168 Benchmark]: RCFGBuilder took 1381.67 ms. Allocated memory was 46.1 MB in the beginning and 55.1 MB in the end (delta: 8.9 MB). Free memory was 15.7 MB in the beginning and 19.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:54,145 INFO L168 Benchmark]: TraceAbstraction took 9152.33 ms. Allocated memory was 55.1 MB in the beginning and 135.3 MB in the end (delta: 80.2 MB). Free memory was 19.0 MB in the beginning and 19.6 MB in the end (delta: -613.9 kB). Peak memory consumption was 79.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:54,146 INFO L168 Benchmark]: Witness Printer took 267.16 ms. Allocated memory was 135.3 MB in the beginning and 135.8 MB in the end (delta: 524.3 kB). Free memory was 19.6 MB in the beginning and 94.5 MB in the end (delta: -75.0 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:31:54,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 33.0 MB. Free memory was 11.6 MB in the beginning and 11.6 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 676.04 ms. Allocated memory was 43.0 MB in the beginning and 46.1 MB in the end (delta: 3.1 MB). Free memory was 22.3 MB in the beginning and 26.2 MB in the end (delta: -3.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 94.16 ms. Allocated memory is still 46.1 MB. Free memory was 26.2 MB in the beginning and 20.5 MB in the end (delta: 5.6 MB). Peak memory consumption was 5.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 79.02 ms. Allocated memory is still 46.1 MB. Free memory was 20.5 MB in the beginning and 15.7 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1381.67 ms. Allocated memory was 46.1 MB in the beginning and 55.1 MB in the end (delta: 8.9 MB). Free memory was 15.7 MB in the beginning and 19.4 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 9152.33 ms. Allocated memory was 55.1 MB in the beginning and 135.3 MB in the end (delta: 80.2 MB). Free memory was 19.0 MB in the beginning and 19.6 MB in the end (delta: -613.9 kB). Peak memory consumption was 79.6 MB. Max. memory is 14.3 GB. * Witness Printer took 267.16 ms. Allocated memory was 135.3 MB in the beginning and 135.8 MB in the end (delta: 524.3 kB). Free memory was 19.6 MB in the beginning and 94.5 MB in the end (delta: -75.0 MB). Peak memory consumption was 12.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: (((9 <= a28 && a25 == 1) || (a25 == 1 && a28 <= 7)) || a25 == 0) || (a19 == 1 && a25 == 1) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((9 <= a28 && a25 == 1) || (a25 == 1 && a28 <= 7)) || a25 == 0) || (a19 == 1 && a25 == 1) - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1176 SDtfs, 896 SDslu, 151 SDs, 0 SdLazy, 3015 SolverSat, 566 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 416 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2699occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 297 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 41 NumberOfFragments, 51 HoareAnnotationTreeSize, 3 FomulaSimplifications, 358 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1475 NumberOfCodeBlocks, 1475 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1464 ConstructedInterpolants, 0 QuantifiedInterpolants, 395634 SizeOfPredicates, 3 NumberOfNonLiveVariables, 829 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 293/307 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...