./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.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/openssl-simplified/s3_clnt_2.cil-2.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 b4872de39e95e4bc5ccbeb0f1761dba68e05980d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 22:23:41,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:23:41,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:23:41,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:23:41,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:23:41,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:23:41,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:23:41,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:23:41,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:23:41,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:23:41,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:23:41,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:23:41,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:23:41,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:23:41,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:23:41,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:23:41,429 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:23:41,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:23:41,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:23:41,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:23:41,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:23:41,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:23:41,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:23:41,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:23:41,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:23:41,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:23:41,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:23:41,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:23:41,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:23:41,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:23:41,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:23:41,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:23:41,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:23:41,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:23:41,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:23:41,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:23:41,480 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:23:41,480 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:23:41,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:23:41,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:23:41,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:23:41,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:23:41,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:23:41,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:23:41,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:23:41,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:23:41,520 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:23:41,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:23:41,520 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:23:41,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:23:41,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:23:41,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:23:41,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:23:41,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:23:41,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:23:41,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:23:41,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:23:41,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:23:41,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:23:41,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:23:41,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:23:41,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:23:41,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:23:41,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:23:41,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:23:41,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:23:41,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:23:41,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:23:41,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:23:41,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:23:41,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:23:41,527 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 -> b4872de39e95e4bc5ccbeb0f1761dba68e05980d [2020-10-19 22:23:41,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:23:41,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:23:41,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:23:41,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:23:41,753 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:23:41,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2020-10-19 22:23:41,826 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdcf580f7/65fa053ff11e49b59a97dd20fe3fd0f1/FLAG6d31c86fe [2020-10-19 22:23:42,269 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:23:42,270 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_2.cil-2.c [2020-10-19 22:23:42,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdcf580f7/65fa053ff11e49b59a97dd20fe3fd0f1/FLAG6d31c86fe [2020-10-19 22:23:42,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdcf580f7/65fa053ff11e49b59a97dd20fe3fd0f1 [2020-10-19 22:23:42,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:23:42,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:23:42,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:23:42,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:23:42,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:23:42,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:23:42" (1/1) ... [2020-10-19 22:23:42,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a39a322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:42, skipping insertion in model container [2020-10-19 22:23:42,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:23:42" (1/1) ... [2020-10-19 22:23:42,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:23:42,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:23:43,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:23:43,106 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:23:43,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:23:43,230 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:23:43,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43 WrapperNode [2020-10-19 22:23:43,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:23:43,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:23:43,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:23:43,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:23:43,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:23:43,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:23:43,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:23:43,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:23:43,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (1/1) ... [2020-10-19 22:23:43,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:23:43,369 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:23:43,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:23:43,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:23:43,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (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 22:23:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:23:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:23:43,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:23:43,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:23:43,574 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 22:23:44,244 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-19 22:23:44,244 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-19 22:23:44,254 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:23:44,255 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:23:44,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:44 BoogieIcfgContainer [2020-10-19 22:23:44,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:23:44,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:23:44,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:23:44,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:23:44,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:23:42" (1/3) ... [2020-10-19 22:23:44,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e922f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:23:44, skipping insertion in model container [2020-10-19 22:23:44,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:23:43" (2/3) ... [2020-10-19 22:23:44,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65e922f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:23:44, skipping insertion in model container [2020-10-19 22:23:44,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:44" (3/3) ... [2020-10-19 22:23:44,265 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-2.c [2020-10-19 22:23:44,275 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:23:44,282 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:23:44,295 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:23:44,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:23:44,320 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:23:44,320 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:23:44,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:23:44,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:23:44,321 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:23:44,321 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:23:44,321 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:23:44,338 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states. [2020-10-19 22:23:44,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 22:23:44,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:44,347 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] [2020-10-19 22:23:44,347 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:44,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:44,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1457695038, now seen corresponding path program 1 times [2020-10-19 22:23:44,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:44,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490574218] [2020-10-19 22:23:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:44,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:23:44,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490574218] [2020-10-19 22:23:44,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:44,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:44,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638771183] [2020-10-19 22:23:44,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:44,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:44,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:44,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:44,617 INFO L87 Difference]: Start difference. First operand 129 states. Second operand 3 states. [2020-10-19 22:23:44,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:44,822 INFO L93 Difference]: Finished difference Result 253 states and 428 transitions. [2020-10-19 22:23:44,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:44,824 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-19 22:23:44,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:44,836 INFO L225 Difference]: With dead ends: 253 [2020-10-19 22:23:44,837 INFO L226 Difference]: Without dead ends: 115 [2020-10-19 22:23:44,841 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 22:23:44,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-10-19 22:23:44,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-10-19 22:23:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-19 22:23:44,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 172 transitions. [2020-10-19 22:23:44,890 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 172 transitions. Word has length 24 [2020-10-19 22:23:44,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:44,891 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 172 transitions. [2020-10-19 22:23:44,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:44,891 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 172 transitions. [2020-10-19 22:23:44,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-19 22:23:44,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:44,893 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] [2020-10-19 22:23:44,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:23:44,894 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:44,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:44,894 INFO L82 PathProgramCache]: Analyzing trace with hash 561717339, now seen corresponding path program 1 times [2020-10-19 22:23:44,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:44,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342102948] [2020-10-19 22:23:44,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:45,011 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 22:23:45,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342102948] [2020-10-19 22:23:45,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:45,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:45,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558074782] [2020-10-19 22:23:45,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:45,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:45,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:45,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:45,016 INFO L87 Difference]: Start difference. First operand 115 states and 172 transitions. Second operand 3 states. [2020-10-19 22:23:45,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:45,254 INFO L93 Difference]: Finished difference Result 239 states and 362 transitions. [2020-10-19 22:23:45,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:45,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-10-19 22:23:45,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:45,257 INFO L225 Difference]: With dead ends: 239 [2020-10-19 22:23:45,257 INFO L226 Difference]: Without dead ends: 134 [2020-10-19 22:23:45,259 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 22:23:45,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-19 22:23:45,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2020-10-19 22:23:45,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-19 22:23:45,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 192 transitions. [2020-10-19 22:23:45,281 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 192 transitions. Word has length 37 [2020-10-19 22:23:45,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:45,281 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 192 transitions. [2020-10-19 22:23:45,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:45,281 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 192 transitions. [2020-10-19 22:23:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-19 22:23:45,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:45,283 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:45,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:23:45,284 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:45,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:45,284 INFO L82 PathProgramCache]: Analyzing trace with hash 684962052, now seen corresponding path program 1 times [2020-10-19 22:23:45,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:45,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791391307] [2020-10-19 22:23:45,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:23:45,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791391307] [2020-10-19 22:23:45,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:45,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:45,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886436568] [2020-10-19 22:23:45,353 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:45,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:45,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:45,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:45,354 INFO L87 Difference]: Start difference. First operand 130 states and 192 transitions. Second operand 3 states. [2020-10-19 22:23:45,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:45,511 INFO L93 Difference]: Finished difference Result 271 states and 406 transitions. [2020-10-19 22:23:45,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:45,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-10-19 22:23:45,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:45,513 INFO L225 Difference]: With dead ends: 271 [2020-10-19 22:23:45,513 INFO L226 Difference]: Without dead ends: 151 [2020-10-19 22:23:45,515 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 22:23:45,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-19 22:23:45,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 147. [2020-10-19 22:23:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-19 22:23:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 214 transitions. [2020-10-19 22:23:45,526 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 214 transitions. Word has length 51 [2020-10-19 22:23:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:45,527 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 214 transitions. [2020-10-19 22:23:45,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 214 transitions. [2020-10-19 22:23:45,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 22:23:45,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:45,530 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2020-10-19 22:23:45,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:23:45,531 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:45,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:45,531 INFO L82 PathProgramCache]: Analyzing trace with hash -184561774, now seen corresponding path program 1 times [2020-10-19 22:23:45,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:45,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725163263] [2020-10-19 22:23:45,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:45,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:45,618 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:23:45,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725163263] [2020-10-19 22:23:45,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:45,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:45,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478347047] [2020-10-19 22:23:45,621 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:45,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:45,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:45,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:45,622 INFO L87 Difference]: Start difference. First operand 147 states and 214 transitions. Second operand 3 states. [2020-10-19 22:23:45,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:45,830 INFO L93 Difference]: Finished difference Result 335 states and 503 transitions. [2020-10-19 22:23:45,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:45,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-19 22:23:45,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:45,832 INFO L225 Difference]: With dead ends: 335 [2020-10-19 22:23:45,833 INFO L226 Difference]: Without dead ends: 197 [2020-10-19 22:23:45,834 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 22:23:45,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-10-19 22:23:45,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 188. [2020-10-19 22:23:45,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-10-19 22:23:45,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 264 transitions. [2020-10-19 22:23:45,846 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 264 transitions. Word has length 68 [2020-10-19 22:23:45,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:45,847 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 264 transitions. [2020-10-19 22:23:45,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:45,847 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2020-10-19 22:23:45,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 22:23:45,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:45,852 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2020-10-19 22:23:45,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:23:45,852 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:45,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:45,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1990000108, now seen corresponding path program 1 times [2020-10-19 22:23:45,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:45,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121202726] [2020-10-19 22:23:45,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:23:45,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121202726] [2020-10-19 22:23:45,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:45,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:45,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31281995] [2020-10-19 22:23:45,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:45,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:45,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:45,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:45,973 INFO L87 Difference]: Start difference. First operand 188 states and 264 transitions. Second operand 3 states. [2020-10-19 22:23:46,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:46,118 INFO L93 Difference]: Finished difference Result 390 states and 555 transitions. [2020-10-19 22:23:46,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:46,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-19 22:23:46,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:46,121 INFO L225 Difference]: With dead ends: 390 [2020-10-19 22:23:46,121 INFO L226 Difference]: Without dead ends: 212 [2020-10-19 22:23:46,122 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 22:23:46,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-19 22:23:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-10-19 22:23:46,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-19 22:23:46,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 288 transitions. [2020-10-19 22:23:46,132 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 288 transitions. Word has length 68 [2020-10-19 22:23:46,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:46,133 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 288 transitions. [2020-10-19 22:23:46,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:46,133 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 288 transitions. [2020-10-19 22:23:46,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-19 22:23:46,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:46,135 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-19 22:23:46,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:23:46,136 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:46,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:46,136 INFO L82 PathProgramCache]: Analyzing trace with hash -843012112, now seen corresponding path program 1 times [2020-10-19 22:23:46,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:46,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697829594] [2020-10-19 22:23:46,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:46,219 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-19 22:23:46,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697829594] [2020-10-19 22:23:46,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:46,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:46,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636985582] [2020-10-19 22:23:46,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:46,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:46,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:46,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:46,221 INFO L87 Difference]: Start difference. First operand 207 states and 288 transitions. Second operand 3 states. [2020-10-19 22:23:46,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:46,390 INFO L93 Difference]: Finished difference Result 428 states and 604 transitions. [2020-10-19 22:23:46,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:46,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2020-10-19 22:23:46,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:46,392 INFO L225 Difference]: With dead ends: 428 [2020-10-19 22:23:46,392 INFO L226 Difference]: Without dead ends: 231 [2020-10-19 22:23:46,393 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 22:23:46,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-10-19 22:23:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2020-10-19 22:23:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-10-19 22:23:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 314 transitions. [2020-10-19 22:23:46,402 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 314 transitions. Word has length 85 [2020-10-19 22:23:46,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:46,403 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 314 transitions. [2020-10-19 22:23:46,403 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:46,403 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 314 transitions. [2020-10-19 22:23:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-19 22:23:46,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:46,406 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-19 22:23:46,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:23:46,406 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:46,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:46,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1725839848, now seen corresponding path program 1 times [2020-10-19 22:23:46,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:46,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919352582] [2020-10-19 22:23:46,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:46,507 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 22:23:46,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919352582] [2020-10-19 22:23:46,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:46,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:46,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796042712] [2020-10-19 22:23:46,510 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:46,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:46,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:46,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:46,512 INFO L87 Difference]: Start difference. First operand 228 states and 314 transitions. Second operand 3 states. [2020-10-19 22:23:46,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:46,551 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2020-10-19 22:23:46,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:46,553 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-10-19 22:23:46,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:46,557 INFO L225 Difference]: With dead ends: 661 [2020-10-19 22:23:46,557 INFO L226 Difference]: Without dead ends: 443 [2020-10-19 22:23:46,559 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 22:23:46,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-10-19 22:23:46,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-10-19 22:23:46,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-10-19 22:23:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 606 transitions. [2020-10-19 22:23:46,580 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 606 transitions. Word has length 105 [2020-10-19 22:23:46,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:46,581 INFO L481 AbstractCegarLoop]: Abstraction has 443 states and 606 transitions. [2020-10-19 22:23:46,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:46,582 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 606 transitions. [2020-10-19 22:23:46,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-19 22:23:46,585 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:46,586 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-19 22:23:46,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:23:46,587 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:46,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:46,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1889855194, now seen corresponding path program 1 times [2020-10-19 22:23:46,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:46,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193099297] [2020-10-19 22:23:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:46,678 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-19 22:23:46,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193099297] [2020-10-19 22:23:46,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:46,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:46,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673589799] [2020-10-19 22:23:46,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:46,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:46,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:46,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:46,693 INFO L87 Difference]: Start difference. First operand 443 states and 606 transitions. Second operand 3 states. [2020-10-19 22:23:46,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:46,722 INFO L93 Difference]: Finished difference Result 897 states and 1226 transitions. [2020-10-19 22:23:46,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:46,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-10-19 22:23:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:46,726 INFO L225 Difference]: With dead ends: 897 [2020-10-19 22:23:46,726 INFO L226 Difference]: Without dead ends: 464 [2020-10-19 22:23:46,727 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 22:23:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-19 22:23:46,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-10-19 22:23:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-19 22:23:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 633 transitions. [2020-10-19 22:23:46,739 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 633 transitions. Word has length 105 [2020-10-19 22:23:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:46,740 INFO L481 AbstractCegarLoop]: Abstraction has 464 states and 633 transitions. [2020-10-19 22:23:46,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 633 transitions. [2020-10-19 22:23:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-19 22:23:46,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:46,742 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-19 22:23:46,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:23:46,742 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:46,743 INFO L82 PathProgramCache]: Analyzing trace with hash -810746188, now seen corresponding path program 1 times [2020-10-19 22:23:46,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:46,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602692038] [2020-10-19 22:23:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:46,780 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-19 22:23:46,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602692038] [2020-10-19 22:23:46,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:46,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:46,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014711191] [2020-10-19 22:23:46,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:46,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:46,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:46,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:46,783 INFO L87 Difference]: Start difference. First operand 464 states and 633 transitions. Second operand 3 states. [2020-10-19 22:23:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:46,820 INFO L93 Difference]: Finished difference Result 945 states and 1287 transitions. [2020-10-19 22:23:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:46,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2020-10-19 22:23:46,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:46,823 INFO L225 Difference]: With dead ends: 945 [2020-10-19 22:23:46,824 INFO L226 Difference]: Without dead ends: 491 [2020-10-19 22:23:46,825 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 22:23:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-10-19 22:23:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-10-19 22:23:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-10-19 22:23:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 667 transitions. [2020-10-19 22:23:46,837 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 667 transitions. Word has length 106 [2020-10-19 22:23:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:46,837 INFO L481 AbstractCegarLoop]: Abstraction has 491 states and 667 transitions. [2020-10-19 22:23:46,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 667 transitions. [2020-10-19 22:23:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-19 22:23:46,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:46,839 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-10-19 22:23:46,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:23:46,839 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:46,840 INFO L82 PathProgramCache]: Analyzing trace with hash 625791090, now seen corresponding path program 1 times [2020-10-19 22:23:46,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:46,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507357031] [2020-10-19 22:23:46,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:46,888 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:23:46,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507357031] [2020-10-19 22:23:46,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:46,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:46,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773732] [2020-10-19 22:23:46,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:46,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:46,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:46,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:46,890 INFO L87 Difference]: Start difference. First operand 491 states and 667 transitions. Second operand 3 states. [2020-10-19 22:23:46,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:46,935 INFO L93 Difference]: Finished difference Result 709 states and 967 transitions. [2020-10-19 22:23:46,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:46,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-10-19 22:23:46,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:46,939 INFO L225 Difference]: With dead ends: 709 [2020-10-19 22:23:46,939 INFO L226 Difference]: Without dead ends: 707 [2020-10-19 22:23:46,940 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 22:23:46,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2020-10-19 22:23:46,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2020-10-19 22:23:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2020-10-19 22:23:46,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 965 transitions. [2020-10-19 22:23:46,973 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 965 transitions. Word has length 107 [2020-10-19 22:23:46,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:46,973 INFO L481 AbstractCegarLoop]: Abstraction has 707 states and 965 transitions. [2020-10-19 22:23:46,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:46,974 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 965 transitions. [2020-10-19 22:23:46,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-19 22:23:46,977 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:46,977 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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] [2020-10-19 22:23:46,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:23:46,977 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:46,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1290635395, now seen corresponding path program 1 times [2020-10-19 22:23:46,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:46,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195102030] [2020-10-19 22:23:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:47,080 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-19 22:23:47,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195102030] [2020-10-19 22:23:47,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:47,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:47,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214276610] [2020-10-19 22:23:47,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:47,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:47,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:47,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:47,083 INFO L87 Difference]: Start difference. First operand 707 states and 965 transitions. Second operand 3 states. [2020-10-19 22:23:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:47,292 INFO L93 Difference]: Finished difference Result 1530 states and 2149 transitions. [2020-10-19 22:23:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:47,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-10-19 22:23:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:47,299 INFO L225 Difference]: With dead ends: 1530 [2020-10-19 22:23:47,299 INFO L226 Difference]: Without dead ends: 857 [2020-10-19 22:23:47,301 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 22:23:47,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2020-10-19 22:23:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 824. [2020-10-19 22:23:47,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-10-19 22:23:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1154 transitions. [2020-10-19 22:23:47,333 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1154 transitions. Word has length 176 [2020-10-19 22:23:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:47,334 INFO L481 AbstractCegarLoop]: Abstraction has 824 states and 1154 transitions. [2020-10-19 22:23:47,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:47,335 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1154 transitions. [2020-10-19 22:23:47,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-10-19 22:23:47,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:47,342 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:47,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:23:47,343 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:47,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:47,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1154586908, now seen corresponding path program 2 times [2020-10-19 22:23:47,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:47,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370769652] [2020-10-19 22:23:47,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:47,470 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 327 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-10-19 22:23:47,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370769652] [2020-10-19 22:23:47,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:47,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:47,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696394679] [2020-10-19 22:23:47,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:47,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:47,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:47,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:47,475 INFO L87 Difference]: Start difference. First operand 824 states and 1154 transitions. Second operand 3 states. [2020-10-19 22:23:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:47,726 INFO L93 Difference]: Finished difference Result 1892 states and 2730 transitions. [2020-10-19 22:23:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:47,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-10-19 22:23:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:47,735 INFO L225 Difference]: With dead ends: 1892 [2020-10-19 22:23:47,736 INFO L226 Difference]: Without dead ends: 1054 [2020-10-19 22:23:47,738 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 22:23:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2020-10-19 22:23:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 1013. [2020-10-19 22:23:47,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1013 states. [2020-10-19 22:23:47,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1406 transitions. [2020-10-19 22:23:47,773 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1406 transitions. Word has length 189 [2020-10-19 22:23:47,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:47,774 INFO L481 AbstractCegarLoop]: Abstraction has 1013 states and 1406 transitions. [2020-10-19 22:23:47,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:47,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1406 transitions. [2020-10-19 22:23:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-19 22:23:47,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:47,783 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 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] [2020-10-19 22:23:47,783 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:23:47,783 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:47,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:47,784 INFO L82 PathProgramCache]: Analyzing trace with hash -1143144718, now seen corresponding path program 1 times [2020-10-19 22:23:47,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:47,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228203013] [2020-10-19 22:23:47,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:47,908 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 404 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-10-19 22:23:47,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228203013] [2020-10-19 22:23:47,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:47,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:47,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551746635] [2020-10-19 22:23:47,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:47,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:47,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:47,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:47,912 INFO L87 Difference]: Start difference. First operand 1013 states and 1406 transitions. Second operand 3 states. [2020-10-19 22:23:48,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:48,187 INFO L93 Difference]: Finished difference Result 2148 states and 3007 transitions. [2020-10-19 22:23:48,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:48,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-10-19 22:23:48,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:48,196 INFO L225 Difference]: With dead ends: 2148 [2020-10-19 22:23:48,196 INFO L226 Difference]: Without dead ends: 1127 [2020-10-19 22:23:48,199 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 22:23:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2020-10-19 22:23:48,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1088. [2020-10-19 22:23:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-10-19 22:23:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1502 transitions. [2020-10-19 22:23:48,239 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1502 transitions. Word has length 210 [2020-10-19 22:23:48,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:48,239 INFO L481 AbstractCegarLoop]: Abstraction has 1088 states and 1502 transitions. [2020-10-19 22:23:48,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:48,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1502 transitions. [2020-10-19 22:23:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-19 22:23:48,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:48,247 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:48,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 22:23:48,247 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:48,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:48,248 INFO L82 PathProgramCache]: Analyzing trace with hash 455987487, now seen corresponding path program 1 times [2020-10-19 22:23:48,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:48,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372508032] [2020-10-19 22:23:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-19 22:23:48,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372508032] [2020-10-19 22:23:48,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:48,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:48,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520490006] [2020-10-19 22:23:48,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:48,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:48,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:48,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:48,391 INFO L87 Difference]: Start difference. First operand 1088 states and 1502 transitions. Second operand 3 states. [2020-10-19 22:23:48,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:48,660 INFO L93 Difference]: Finished difference Result 2298 states and 3196 transitions. [2020-10-19 22:23:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:48,660 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-19 22:23:48,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:48,669 INFO L225 Difference]: With dead ends: 2298 [2020-10-19 22:23:48,669 INFO L226 Difference]: Without dead ends: 1208 [2020-10-19 22:23:48,672 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 22:23:48,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-10-19 22:23:48,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1172. [2020-10-19 22:23:48,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1172 states. [2020-10-19 22:23:48,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1172 states to 1172 states and 1613 transitions. [2020-10-19 22:23:48,717 INFO L78 Accepts]: Start accepts. Automaton has 1172 states and 1613 transitions. Word has length 234 [2020-10-19 22:23:48,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:48,718 INFO L481 AbstractCegarLoop]: Abstraction has 1172 states and 1613 transitions. [2020-10-19 22:23:48,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1172 states and 1613 transitions. [2020-10-19 22:23:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-10-19 22:23:48,723 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:48,723 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:48,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 22:23:48,724 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:48,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:48,724 INFO L82 PathProgramCache]: Analyzing trace with hash 574428961, now seen corresponding path program 1 times [2020-10-19 22:23:48,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:48,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764642324] [2020-10-19 22:23:48,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-19 22:23:48,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764642324] [2020-10-19 22:23:48,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:48,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:48,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404164229] [2020-10-19 22:23:48,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:48,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:48,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:48,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:48,854 INFO L87 Difference]: Start difference. First operand 1172 states and 1613 transitions. Second operand 3 states. [2020-10-19 22:23:49,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:49,055 INFO L93 Difference]: Finished difference Result 2466 states and 3421 transitions. [2020-10-19 22:23:49,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:49,055 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 234 [2020-10-19 22:23:49,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:49,062 INFO L225 Difference]: With dead ends: 2466 [2020-10-19 22:23:49,062 INFO L226 Difference]: Without dead ends: 1304 [2020-10-19 22:23:49,064 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 22:23:49,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2020-10-19 22:23:49,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1265. [2020-10-19 22:23:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1265 states. [2020-10-19 22:23:49,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1745 transitions. [2020-10-19 22:23:49,098 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1745 transitions. Word has length 234 [2020-10-19 22:23:49,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:49,099 INFO L481 AbstractCegarLoop]: Abstraction has 1265 states and 1745 transitions. [2020-10-19 22:23:49,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:49,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1745 transitions. [2020-10-19 22:23:49,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-19 22:23:49,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:49,104 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 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] [2020-10-19 22:23:49,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 22:23:49,105 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:49,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:49,105 INFO L82 PathProgramCache]: Analyzing trace with hash 172133823, now seen corresponding path program 1 times [2020-10-19 22:23:49,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:49,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897187980] [2020-10-19 22:23:49,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 622 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2020-10-19 22:23:49,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897187980] [2020-10-19 22:23:49,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:49,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:49,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128316578] [2020-10-19 22:23:49,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:49,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:49,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:49,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:49,229 INFO L87 Difference]: Start difference. First operand 1265 states and 1745 transitions. Second operand 3 states. [2020-10-19 22:23:49,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:49,275 INFO L93 Difference]: Finished difference Result 3718 states and 5136 transitions. [2020-10-19 22:23:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:49,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-10-19 22:23:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:49,288 INFO L225 Difference]: With dead ends: 3718 [2020-10-19 22:23:49,288 INFO L226 Difference]: Without dead ends: 2490 [2020-10-19 22:23:49,291 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 22:23:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2020-10-19 22:23:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2020-10-19 22:23:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2020-10-19 22:23:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3435 transitions. [2020-10-19 22:23:49,391 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3435 transitions. Word has length 264 [2020-10-19 22:23:49,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:49,392 INFO L481 AbstractCegarLoop]: Abstraction has 2488 states and 3435 transitions. [2020-10-19 22:23:49,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3435 transitions. [2020-10-19 22:23:49,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-10-19 22:23:49,401 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:49,402 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 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] [2020-10-19 22:23:49,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 22:23:49,403 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:49,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:49,403 INFO L82 PathProgramCache]: Analyzing trace with hash 290575297, now seen corresponding path program 1 times [2020-10-19 22:23:49,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:49,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794038601] [2020-10-19 22:23:49,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 975 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-10-19 22:23:49,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794038601] [2020-10-19 22:23:49,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:49,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:49,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463000790] [2020-10-19 22:23:49,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:49,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:49,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:49,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:49,560 INFO L87 Difference]: Start difference. First operand 2488 states and 3435 transitions. Second operand 3 states. [2020-10-19 22:23:49,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:49,805 INFO L93 Difference]: Finished difference Result 5251 states and 7296 transitions. [2020-10-19 22:23:49,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:49,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 264 [2020-10-19 22:23:49,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:49,819 INFO L225 Difference]: With dead ends: 5251 [2020-10-19 22:23:49,820 INFO L226 Difference]: Without dead ends: 2770 [2020-10-19 22:23:49,825 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 22:23:49,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2020-10-19 22:23:49,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2698. [2020-10-19 22:23:49,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2698 states. [2020-10-19 22:23:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3747 transitions. [2020-10-19 22:23:49,906 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3747 transitions. Word has length 264 [2020-10-19 22:23:49,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:49,907 INFO L481 AbstractCegarLoop]: Abstraction has 2698 states and 3747 transitions. [2020-10-19 22:23:49,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3747 transitions. [2020-10-19 22:23:49,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-10-19 22:23:49,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:49,916 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:49,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 22:23:49,916 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:49,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:49,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1239310138, now seen corresponding path program 1 times [2020-10-19 22:23:49,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:49,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125268644] [2020-10-19 22:23:49,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:50,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1169 backedges. 629 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-10-19 22:23:50,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125268644] [2020-10-19 22:23:50,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:50,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:50,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605765326] [2020-10-19 22:23:50,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:50,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:50,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:50,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:50,286 INFO L87 Difference]: Start difference. First operand 2698 states and 3747 transitions. Second operand 3 states. [2020-10-19 22:23:50,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:50,494 INFO L93 Difference]: Finished difference Result 5443 states and 7548 transitions. [2020-10-19 22:23:50,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:50,495 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 299 [2020-10-19 22:23:50,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:50,507 INFO L225 Difference]: With dead ends: 5443 [2020-10-19 22:23:50,508 INFO L226 Difference]: Without dead ends: 2764 [2020-10-19 22:23:50,512 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 22:23:50,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2020-10-19 22:23:50,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2692. [2020-10-19 22:23:50,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-10-19 22:23:50,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3711 transitions. [2020-10-19 22:23:50,613 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3711 transitions. Word has length 299 [2020-10-19 22:23:50,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:50,613 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3711 transitions. [2020-10-19 22:23:50,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:50,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3711 transitions. [2020-10-19 22:23:50,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-19 22:23:50,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:50,624 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:50,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 22:23:50,625 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:50,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:50,625 INFO L82 PathProgramCache]: Analyzing trace with hash 918915254, now seen corresponding path program 1 times [2020-10-19 22:23:50,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:50,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990631188] [2020-10-19 22:23:50,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:50,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 663 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-10-19 22:23:50,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990631188] [2020-10-19 22:23:50,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:50,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:50,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878448465] [2020-10-19 22:23:50,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:50,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:50,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:50,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:50,766 INFO L87 Difference]: Start difference. First operand 2692 states and 3711 transitions. Second operand 3 states. [2020-10-19 22:23:50,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:50,979 INFO L93 Difference]: Finished difference Result 5407 states and 7446 transitions. [2020-10-19 22:23:50,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:50,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 322 [2020-10-19 22:23:50,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:50,997 INFO L225 Difference]: With dead ends: 5407 [2020-10-19 22:23:50,997 INFO L226 Difference]: Without dead ends: 2752 [2020-10-19 22:23:51,003 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 22:23:51,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2752 states. [2020-10-19 22:23:51,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2752 to 2692. [2020-10-19 22:23:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2692 states. [2020-10-19 22:23:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 3657 transitions. [2020-10-19 22:23:51,103 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 3657 transitions. Word has length 322 [2020-10-19 22:23:51,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:51,104 INFO L481 AbstractCegarLoop]: Abstraction has 2692 states and 3657 transitions. [2020-10-19 22:23:51,104 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:51,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 3657 transitions. [2020-10-19 22:23:51,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2020-10-19 22:23:51,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:51,120 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:51,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-19 22:23:51,120 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:51,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:51,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1665023372, now seen corresponding path program 1 times [2020-10-19 22:23:51,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:51,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4852650] [2020-10-19 22:23:51,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 731 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:23:51,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4852650] [2020-10-19 22:23:51,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:51,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:51,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250986501] [2020-10-19 22:23:51,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:51,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:51,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:51,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:51,343 INFO L87 Difference]: Start difference. First operand 2692 states and 3657 transitions. Second operand 3 states. [2020-10-19 22:23:51,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:51,639 INFO L93 Difference]: Finished difference Result 5653 states and 7626 transitions. [2020-10-19 22:23:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:51,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 336 [2020-10-19 22:23:51,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:51,659 INFO L225 Difference]: With dead ends: 5653 [2020-10-19 22:23:51,659 INFO L226 Difference]: Without dead ends: 2998 [2020-10-19 22:23:51,665 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 22:23:51,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2020-10-19 22:23:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2782. [2020-10-19 22:23:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2020-10-19 22:23:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3777 transitions. [2020-10-19 22:23:51,769 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3777 transitions. Word has length 336 [2020-10-19 22:23:51,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:51,770 INFO L481 AbstractCegarLoop]: Abstraction has 2782 states and 3777 transitions. [2020-10-19 22:23:51,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:51,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3777 transitions. [2020-10-19 22:23:51,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2020-10-19 22:23:51,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:51,786 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:51,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-19 22:23:51,786 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:51,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:51,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1597112402, now seen corresponding path program 1 times [2020-10-19 22:23:51,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:51,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022891796] [2020-10-19 22:23:51,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1420 backedges. 871 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2020-10-19 22:23:52,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022891796] [2020-10-19 22:23:52,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:52,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:52,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919522017] [2020-10-19 22:23:52,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:52,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:52,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:52,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:52,096 INFO L87 Difference]: Start difference. First operand 2782 states and 3777 transitions. Second operand 3 states. [2020-10-19 22:23:52,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:52,235 INFO L93 Difference]: Finished difference Result 7882 states and 10755 transitions. [2020-10-19 22:23:52,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:52,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2020-10-19 22:23:52,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:52,266 INFO L225 Difference]: With dead ends: 7882 [2020-10-19 22:23:52,266 INFO L226 Difference]: Without dead ends: 5137 [2020-10-19 22:23:52,273 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 22:23:52,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-10-19 22:23:52,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 5135. [2020-10-19 22:23:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5135 states. [2020-10-19 22:23:52,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5135 states to 5135 states and 7007 transitions. [2020-10-19 22:23:52,461 INFO L78 Accepts]: Start accepts. Automaton has 5135 states and 7007 transitions. Word has length 337 [2020-10-19 22:23:52,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:52,462 INFO L481 AbstractCegarLoop]: Abstraction has 5135 states and 7007 transitions. [2020-10-19 22:23:52,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:52,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5135 states and 7007 transitions. [2020-10-19 22:23:52,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2020-10-19 22:23:52,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:52,484 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:52,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-19 22:23:52,485 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:52,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1354743787, now seen corresponding path program 1 times [2020-10-19 22:23:52,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:52,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451727870] [2020-10-19 22:23:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-10-19 22:23:52,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451727870] [2020-10-19 22:23:52,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833443548] [2020-10-19 22:23:52,789 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 22:23:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:53,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:23:53,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:23:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 904 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-10-19 22:23:53,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:23:53,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:23:53,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477496260] [2020-10-19 22:23:53,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:23:53,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:53,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:23:53,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:23:53,415 INFO L87 Difference]: Start difference. First operand 5135 states and 7007 transitions. Second operand 4 states. [2020-10-19 22:23:54,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:54,014 INFO L93 Difference]: Finished difference Result 10175 states and 13865 transitions. [2020-10-19 22:23:54,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 22:23:54,015 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 361 [2020-10-19 22:23:54,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:54,060 INFO L225 Difference]: With dead ends: 10175 [2020-10-19 22:23:54,060 INFO L226 Difference]: Without dead ends: 7688 [2020-10-19 22:23:54,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:54,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7688 states. [2020-10-19 22:23:54,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7688 to 5669. [2020-10-19 22:23:54,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5669 states. [2020-10-19 22:23:54,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5669 states to 5669 states and 7643 transitions. [2020-10-19 22:23:54,351 INFO L78 Accepts]: Start accepts. Automaton has 5669 states and 7643 transitions. Word has length 361 [2020-10-19 22:23:54,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:54,353 INFO L481 AbstractCegarLoop]: Abstraction has 5669 states and 7643 transitions. [2020-10-19 22:23:54,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:23:54,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5669 states and 7643 transitions. [2020-10-19 22:23:54,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2020-10-19 22:23:54,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:54,374 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:54,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-10-19 22:23:54,589 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:54,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:54,590 INFO L82 PathProgramCache]: Analyzing trace with hash 290805068, now seen corresponding path program 2 times [2020-10-19 22:23:54,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:54,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129752436] [2020-10-19 22:23:54,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:23:54,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129752436] [2020-10-19 22:23:54,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807619713] [2020-10-19 22:23:54,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 22:23:55,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 22:23:55,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 22:23:55,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:23:55,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:23:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1649 backedges. 955 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:23:55,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:23:55,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:23:55,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486444025] [2020-10-19 22:23:55,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:23:55,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:55,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:23:55,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:23:55,424 INFO L87 Difference]: Start difference. First operand 5669 states and 7643 transitions. Second operand 4 states. [2020-10-19 22:23:55,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:55,970 INFO L93 Difference]: Finished difference Result 12703 states and 17150 transitions. [2020-10-19 22:23:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:23:55,971 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 374 [2020-10-19 22:23:55,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:55,996 INFO L225 Difference]: With dead ends: 12703 [2020-10-19 22:23:55,997 INFO L226 Difference]: Without dead ends: 7058 [2020-10-19 22:23:56,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:56,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2020-10-19 22:23:56,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 5789. [2020-10-19 22:23:56,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5789 states. [2020-10-19 22:23:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5789 states to 5789 states and 7724 transitions. [2020-10-19 22:23:56,251 INFO L78 Accepts]: Start accepts. Automaton has 5789 states and 7724 transitions. Word has length 374 [2020-10-19 22:23:56,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:56,253 INFO L481 AbstractCegarLoop]: Abstraction has 5789 states and 7724 transitions. [2020-10-19 22:23:56,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:23:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5789 states and 7724 transitions. [2020-10-19 22:23:56,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2020-10-19 22:23:56,279 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:56,280 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:56,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2020-10-19 22:23:56,494 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:56,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:56,494 INFO L82 PathProgramCache]: Analyzing trace with hash -939951161, now seen corresponding path program 1 times [2020-10-19 22:23:56,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:56,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682975459] [2020-10-19 22:23:56,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1970 backedges. 885 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2020-10-19 22:23:56,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682975459] [2020-10-19 22:23:56,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:23:56,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:23:56,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496408720] [2020-10-19 22:23:56,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:56,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:56,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:56,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:23:56,895 INFO L87 Difference]: Start difference. First operand 5789 states and 7724 transitions. Second operand 3 states. [2020-10-19 22:23:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:57,152 INFO L93 Difference]: Finished difference Result 11133 states and 14642 transitions. [2020-10-19 22:23:57,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:57,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 413 [2020-10-19 22:23:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:57,160 INFO L225 Difference]: With dead ends: 11133 [2020-10-19 22:23:57,161 INFO L226 Difference]: Without dead ends: 3109 [2020-10-19 22:23:57,171 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 22:23:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3109 states. [2020-10-19 22:23:57,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3109 to 3043. [2020-10-19 22:23:57,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3043 states. [2020-10-19 22:23:57,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 4063 transitions. [2020-10-19 22:23:57,289 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 4063 transitions. Word has length 413 [2020-10-19 22:23:57,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:57,290 INFO L481 AbstractCegarLoop]: Abstraction has 3043 states and 4063 transitions. [2020-10-19 22:23:57,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:57,290 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 4063 transitions. [2020-10-19 22:23:57,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-10-19 22:23:57,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:57,304 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 17, 17, 15, 15, 13, 13, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:57,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-19 22:23:57,304 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:57,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:57,305 INFO L82 PathProgramCache]: Analyzing trace with hash -826650578, now seen corresponding path program 1 times [2020-10-19 22:23:57,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:57,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240613128] [2020-10-19 22:23:57,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:57,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1648 proven. 14 refuted. 0 times theorem prover too weak. 1236 trivial. 0 not checked. [2020-10-19 22:23:57,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240613128] [2020-10-19 22:23:57,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045548374] [2020-10-19 22:23:57,819 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 22:23:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:58,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:23:58,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:23:58,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2898 backedges. 1075 proven. 0 refuted. 0 times theorem prover too weak. 1823 trivial. 0 not checked. [2020-10-19 22:23:58,352 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:23:58,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 22:23:58,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268235060] [2020-10-19 22:23:58,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:58,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:58,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:58,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:58,355 INFO L87 Difference]: Start difference. First operand 3043 states and 4063 transitions. Second operand 3 states. [2020-10-19 22:23:58,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:58,394 INFO L93 Difference]: Finished difference Result 3068 states and 4093 transitions. [2020-10-19 22:23:58,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:58,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 511 [2020-10-19 22:23:58,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:58,400 INFO L225 Difference]: With dead ends: 3068 [2020-10-19 22:23:58,400 INFO L226 Difference]: Without dead ends: 2571 [2020-10-19 22:23:58,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 511 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 22:23:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2020-10-19 22:23:58,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2548. [2020-10-19 22:23:58,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2548 states. [2020-10-19 22:23:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 3399 transitions. [2020-10-19 22:23:58,458 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 3399 transitions. Word has length 511 [2020-10-19 22:23:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:58,459 INFO L481 AbstractCegarLoop]: Abstraction has 2548 states and 3399 transitions. [2020-10-19 22:23:58,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:58,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 3399 transitions. [2020-10-19 22:23:58,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2020-10-19 22:23:58,471 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:58,472 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:23:58,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2020-10-19 22:23:58,686 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:23:58,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:23:58,687 INFO L82 PathProgramCache]: Analyzing trace with hash -301655084, now seen corresponding path program 1 times [2020-10-19 22:23:58,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:23:58,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138491661] [2020-10-19 22:23:58,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:23:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:58,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 1623 proven. 14 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2020-10-19 22:23:58,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138491661] [2020-10-19 22:23:58,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266075540] [2020-10-19 22:23:58,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:23:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:23:59,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:23:59,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:23:59,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2784 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 2506 trivial. 0 not checked. [2020-10-19 22:23:59,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 22:23:59,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2020-10-19 22:23:59,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530645907] [2020-10-19 22:23:59,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:23:59,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:23:59,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:23:59,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:23:59,361 INFO L87 Difference]: Start difference. First operand 2548 states and 3399 transitions. Second operand 3 states. [2020-10-19 22:23:59,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:23:59,643 INFO L93 Difference]: Finished difference Result 5167 states and 6909 transitions. [2020-10-19 22:23:59,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:23:59,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 512 [2020-10-19 22:23:59,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:23:59,654 INFO L225 Difference]: With dead ends: 5167 [2020-10-19 22:23:59,654 INFO L226 Difference]: Without dead ends: 2656 [2020-10-19 22:23:59,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 512 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 22:23:59,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2656 states. [2020-10-19 22:23:59,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2656 to 2653. [2020-10-19 22:23:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2653 states. [2020-10-19 22:23:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2653 states to 2653 states and 3411 transitions. [2020-10-19 22:23:59,750 INFO L78 Accepts]: Start accepts. Automaton has 2653 states and 3411 transitions. Word has length 512 [2020-10-19 22:23:59,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:23:59,752 INFO L481 AbstractCegarLoop]: Abstraction has 2653 states and 3411 transitions. [2020-10-19 22:23:59,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:23:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2653 states and 3411 transitions. [2020-10-19 22:23:59,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-10-19 22:23:59,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:23:59,790 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:00,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:24:00,003 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:00,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:00,005 INFO L82 PathProgramCache]: Analyzing trace with hash 44620561, now seen corresponding path program 2 times [2020-10-19 22:24:00,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:00,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531252051] [2020-10-19 22:24:00,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:00,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2020-10-19 22:24:00,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531252051] [2020-10-19 22:24:00,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016789967] [2020-10-19 22:24:00,674 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 22:24:00,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 22:24:00,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 22:24:00,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:24:00,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:24:01,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4135 backedges. 2131 proven. 14 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2020-10-19 22:24:01,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:24:01,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-19 22:24:01,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103259329] [2020-10-19 22:24:01,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:24:01,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:01,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:24:01,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:24:01,273 INFO L87 Difference]: Start difference. First operand 2653 states and 3411 transitions. Second operand 4 states. [2020-10-19 22:24:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:01,479 INFO L93 Difference]: Finished difference Result 2888 states and 3708 transitions. [2020-10-19 22:24:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:24:01,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 623 [2020-10-19 22:24:01,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:01,480 INFO L225 Difference]: With dead ends: 2888 [2020-10-19 22:24:01,480 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:24:01,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 22:24:01,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:24:01,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:24:01,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:24:01,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:24:01,485 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 623 [2020-10-19 22:24:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:01,485 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:24:01,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:24:01,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:24:01,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:24:01,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2020-10-19 22:24:01,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:24:02,197 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 115 [2020-10-19 22:24:03,177 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2020-10-19 22:24:03,331 INFO L274 CegarLoopResult]: For program point L531(lines 531 535) no Hoare annotation was computed. [2020-10-19 22:24:03,331 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-19 22:24:03,331 INFO L274 CegarLoopResult]: For program point L433(lines 433 435) no Hoare annotation was computed. [2020-10-19 22:24:03,331 INFO L274 CegarLoopResult]: For program point L334(lines 334 336) no Hoare annotation was computed. [2020-10-19 22:24:03,331 INFO L277 CegarLoopResult]: At program point L202(lines 201 489) the Hoare annotation is: true [2020-10-19 22:24:03,331 INFO L274 CegarLoopResult]: For program point L169(lines 169 499) no Hoare annotation was computed. [2020-10-19 22:24:03,332 INFO L274 CegarLoopResult]: For program point L136(lines 136 510) no Hoare annotation was computed. [2020-10-19 22:24:03,332 INFO L274 CegarLoopResult]: For program point L103(lines 103 521) no Hoare annotation was computed. [2020-10-19 22:24:03,332 INFO L270 CegarLoopResult]: At program point L170(lines 166 500) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:03,332 INFO L270 CegarLoopResult]: At program point L104(lines 103 521) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= 12292 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-10-19 22:24:03,332 INFO L274 CegarLoopResult]: For program point L468(lines 468 470) no Hoare annotation was computed. [2020-10-19 22:24:03,332 INFO L274 CegarLoopResult]: For program point L468-2(lines 468 470) no Hoare annotation was computed. [2020-10-19 22:24:03,332 INFO L274 CegarLoopResult]: For program point L436(lines 436 440) no Hoare annotation was computed. [2020-10-19 22:24:03,332 INFO L274 CegarLoopResult]: For program point L436-2(lines 436 440) no Hoare annotation was computed. [2020-10-19 22:24:03,333 INFO L274 CegarLoopResult]: For program point L337(lines 337 341) no Hoare annotation was computed. [2020-10-19 22:24:03,333 INFO L274 CegarLoopResult]: For program point L271(lines 271 273) no Hoare annotation was computed. [2020-10-19 22:24:03,333 INFO L274 CegarLoopResult]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2020-10-19 22:24:03,333 INFO L274 CegarLoopResult]: For program point L271-2(lines 203 486) no Hoare annotation was computed. [2020-10-19 22:24:03,333 INFO L274 CegarLoopResult]: For program point L172(lines 172 498) no Hoare annotation was computed. [2020-10-19 22:24:03,333 INFO L274 CegarLoopResult]: For program point L139(lines 139 509) no Hoare annotation was computed. [2020-10-19 22:24:03,333 INFO L274 CegarLoopResult]: For program point L106(lines 106 520) no Hoare annotation was computed. [2020-10-19 22:24:03,333 INFO L270 CegarLoopResult]: At program point L140(lines 136 510) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:03,333 INFO L274 CegarLoopResult]: For program point L306(lines 306 308) no Hoare annotation was computed. [2020-10-19 22:24:03,334 INFO L274 CegarLoopResult]: For program point L240(lines 240 243) no Hoare annotation was computed. [2020-10-19 22:24:03,334 INFO L274 CegarLoopResult]: For program point L306-2(lines 203 486) no Hoare annotation was computed. [2020-10-19 22:24:03,334 INFO L274 CegarLoopResult]: For program point L406(lines 406 408) no Hoare annotation was computed. [2020-10-19 22:24:03,334 INFO L274 CegarLoopResult]: For program point L373(lines 373 375) no Hoare annotation was computed. [2020-10-19 22:24:03,334 INFO L270 CegarLoopResult]: At program point L208(lines 106 520) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0)) [2020-10-19 22:24:03,334 INFO L274 CegarLoopResult]: For program point L175(lines 175 497) no Hoare annotation was computed. [2020-10-19 22:24:03,334 INFO L274 CegarLoopResult]: For program point L142(lines 142 508) no Hoare annotation was computed. [2020-10-19 22:24:03,334 INFO L274 CegarLoopResult]: For program point L109(lines 109 519) no Hoare annotation was computed. [2020-10-19 22:24:03,334 INFO L270 CegarLoopResult]: At program point L176(lines 172 498) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4512) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:03,335 INFO L274 CegarLoopResult]: For program point L474(lines 474 476) no Hoare annotation was computed. [2020-10-19 22:24:03,335 INFO L274 CegarLoopResult]: For program point L474-2(lines 474 476) no Hoare annotation was computed. [2020-10-19 22:24:03,335 INFO L277 CegarLoopResult]: At program point L541(lines 99 542) the Hoare annotation is: true [2020-10-19 22:24:03,335 INFO L274 CegarLoopResult]: For program point L277(lines 277 281) no Hoare annotation was computed. [2020-10-19 22:24:03,335 INFO L274 CegarLoopResult]: For program point L277-2(lines 277 281) no Hoare annotation was computed. [2020-10-19 22:24:03,335 INFO L274 CegarLoopResult]: For program point L178(lines 178 496) no Hoare annotation was computed. [2020-10-19 22:24:03,336 INFO L274 CegarLoopResult]: For program point L145(lines 145 507) no Hoare annotation was computed. [2020-10-19 22:24:03,336 INFO L274 CegarLoopResult]: For program point L112(lines 112 518) no Hoare annotation was computed. [2020-10-19 22:24:03,336 INFO L270 CegarLoopResult]: At program point L146(lines 142 508) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4448) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:03,336 INFO L274 CegarLoopResult]: For program point L213(lines 213 215) no Hoare annotation was computed. [2020-10-19 22:24:03,336 INFO L274 CegarLoopResult]: For program point L213-2(lines 213 215) no Hoare annotation was computed. [2020-10-19 22:24:03,336 INFO L274 CegarLoopResult]: For program point L181(lines 181 495) no Hoare annotation was computed. [2020-10-19 22:24:03,337 INFO L274 CegarLoopResult]: For program point L148(lines 148 506) no Hoare annotation was computed. [2020-10-19 22:24:03,337 INFO L274 CegarLoopResult]: For program point L115(lines 115 517) no Hoare annotation was computed. [2020-10-19 22:24:03,337 INFO L274 CegarLoopResult]: For program point L479(lines 479 481) no Hoare annotation was computed. [2020-10-19 22:24:03,337 INFO L274 CegarLoopResult]: For program point L446(lines 446 457) no Hoare annotation was computed. [2020-10-19 22:24:03,337 INFO L274 CegarLoopResult]: For program point L413(lines 413 427) no Hoare annotation was computed. [2020-10-19 22:24:03,338 INFO L274 CegarLoopResult]: For program point L413-1(lines 413 427) no Hoare annotation was computed. [2020-10-19 22:24:03,338 INFO L274 CegarLoopResult]: For program point L446-2(lines 446 457) no Hoare annotation was computed. [2020-10-19 22:24:03,338 INFO L274 CegarLoopResult]: For program point L314(lines 314 317) no Hoare annotation was computed. [2020-10-19 22:24:03,338 INFO L270 CegarLoopResult]: At program point L182(lines 178 496) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528))) (or (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)))) [2020-10-19 22:24:03,338 INFO L274 CegarLoopResult]: For program point L546(lines 546 548) no Hoare annotation was computed. [2020-10-19 22:24:03,339 INFO L274 CegarLoopResult]: For program point L546-2(lines 546 548) no Hoare annotation was computed. [2020-10-19 22:24:03,339 INFO L274 CegarLoopResult]: For program point L349(lines 349 351) no Hoare annotation was computed. [2020-10-19 22:24:03,339 INFO L274 CegarLoopResult]: For program point L184(lines 184 494) no Hoare annotation was computed. [2020-10-19 22:24:03,339 INFO L274 CegarLoopResult]: For program point L151(lines 151 505) no Hoare annotation was computed. [2020-10-19 22:24:03,339 INFO L274 CegarLoopResult]: For program point L118(lines 118 516) no Hoare annotation was computed. [2020-10-19 22:24:03,339 INFO L274 CegarLoopResult]: For program point L383(lines 383 385) no Hoare annotation was computed. [2020-10-19 22:24:03,340 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:24:03,340 INFO L274 CegarLoopResult]: For program point L218(lines 218 221) no Hoare annotation was computed. [2020-10-19 22:24:03,340 INFO L270 CegarLoopResult]: At program point L152(lines 148 506) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4464) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:03,340 INFO L274 CegarLoopResult]: For program point L86(lines 86 92) no Hoare annotation was computed. [2020-10-19 22:24:03,340 INFO L274 CegarLoopResult]: For program point L417(lines 417 423) no Hoare annotation was computed. [2020-10-19 22:24:03,340 INFO L274 CegarLoopResult]: For program point L252(lines 252 258) no Hoare annotation was computed. [2020-10-19 22:24:03,341 INFO L274 CegarLoopResult]: For program point L451(lines 451 454) no Hoare annotation was computed. [2020-10-19 22:24:03,341 INFO L274 CegarLoopResult]: For program point L187(lines 187 493) no Hoare annotation was computed. [2020-10-19 22:24:03,341 INFO L274 CegarLoopResult]: For program point L154(lines 154 504) no Hoare annotation was computed. [2020-10-19 22:24:03,341 INFO L274 CegarLoopResult]: For program point L121(lines 121 515) no Hoare annotation was computed. [2020-10-19 22:24:03,341 INFO L277 CegarLoopResult]: At program point L551(lines 12 553) the Hoare annotation is: true [2020-10-19 22:24:03,342 INFO L270 CegarLoopResult]: At program point L188(lines 184 494) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and .cse0 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse2))) [2020-10-19 22:24:03,342 INFO L270 CegarLoopResult]: At program point L122(lines 118 516) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-10-19 22:24:03,342 INFO L274 CegarLoopResult]: For program point L89(lines 89 91) no Hoare annotation was computed. [2020-10-19 22:24:03,342 INFO L274 CegarLoopResult]: For program point L89-2(lines 86 92) no Hoare annotation was computed. [2020-10-19 22:24:03,342 INFO L274 CegarLoopResult]: For program point L288(lines 288 298) no Hoare annotation was computed. [2020-10-19 22:24:03,342 INFO L274 CegarLoopResult]: For program point L255(lines 255 257) no Hoare annotation was computed. [2020-10-19 22:24:03,343 INFO L274 CegarLoopResult]: For program point L288-2(lines 288 298) no Hoare annotation was computed. [2020-10-19 22:24:03,343 INFO L274 CegarLoopResult]: For program point L255-2(lines 203 486) no Hoare annotation was computed. [2020-10-19 22:24:03,343 INFO L270 CegarLoopResult]: At program point L487(lines 100 540) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (let ((.cse8 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse1 (not .cse7)) (.cse10 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse9 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (.cse3 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse11 (<= ULTIMATE.start_ssl3_connect_~s__state~0 3)) (.cse6 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560)) (.cse12 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4528)) (.cse4 (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4)) (.cse2 (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2)) (.cse5 (= 4400 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse6 .cse10 .cse7) (and .cse8 .cse1 .cse2 .cse10) (and .cse0 .cse9 .cse3 .cse6 .cse7) (and .cse4 (= ULTIMATE.start_ssl3_connect_~s__state~0 4416) .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (= ULTIMATE.start_ssl3_connect_~s__state~0 4384)) (and .cse2 .cse11 .cse7) (and .cse12 (<= 4512 ULTIMATE.start_ssl3_connect_~s__state~0) .cse2) (and .cse11 .cse6) (and .cse12 (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) .cse4 .cse7) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 0) (= ULTIMATE.start_ssl3_connect_~s__state~0 4368)) (and .cse2 .cse5 .cse7)))) [2020-10-19 22:24:03,343 INFO L274 CegarLoopResult]: For program point L322(lines 322 324) no Hoare annotation was computed. [2020-10-19 22:24:03,344 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:24:03,344 INFO L274 CegarLoopResult]: For program point L190(lines 190 492) no Hoare annotation was computed. [2020-10-19 22:24:03,344 INFO L274 CegarLoopResult]: For program point L157(lines 157 503) no Hoare annotation was computed. [2020-10-19 22:24:03,344 INFO L274 CegarLoopResult]: For program point L124(lines 124 514) no Hoare annotation was computed. [2020-10-19 22:24:03,344 INFO L274 CegarLoopResult]: For program point L389(lines 389 393) no Hoare annotation was computed. [2020-10-19 22:24:03,345 INFO L270 CegarLoopResult]: At program point L323(lines 77 552) the Hoare annotation is: false [2020-10-19 22:24:03,345 INFO L274 CegarLoopResult]: For program point L389-2(lines 203 486) no Hoare annotation was computed. [2020-10-19 22:24:03,345 INFO L274 CegarLoopResult]: For program point L224(lines 224 235) no Hoare annotation was computed. [2020-10-19 22:24:03,345 INFO L274 CegarLoopResult]: For program point L224-2(lines 203 486) no Hoare annotation was computed. [2020-10-19 22:24:03,345 INFO L274 CegarLoopResult]: For program point L522(lines 522 538) no Hoare annotation was computed. [2020-10-19 22:24:03,345 INFO L274 CegarLoopResult]: For program point L523(lines 523 537) no Hoare annotation was computed. [2020-10-19 22:24:03,346 INFO L274 CegarLoopResult]: For program point L358(lines 358 360) no Hoare annotation was computed. [2020-10-19 22:24:03,346 INFO L274 CegarLoopResult]: For program point L325(lines 325 327) no Hoare annotation was computed. [2020-10-19 22:24:03,346 INFO L274 CegarLoopResult]: For program point L292(lines 292 294) no Hoare annotation was computed. [2020-10-19 22:24:03,346 INFO L274 CegarLoopResult]: For program point L226(lines 226 229) no Hoare annotation was computed. [2020-10-19 22:24:03,346 INFO L274 CegarLoopResult]: For program point L292-2(lines 290 298) no Hoare annotation was computed. [2020-10-19 22:24:03,346 INFO L274 CegarLoopResult]: For program point L193(lines 193 491) no Hoare annotation was computed. [2020-10-19 22:24:03,347 INFO L274 CegarLoopResult]: For program point L160(lines 160 502) no Hoare annotation was computed. [2020-10-19 22:24:03,347 INFO L274 CegarLoopResult]: For program point L127(lines 127 513) no Hoare annotation was computed. [2020-10-19 22:24:03,347 INFO L274 CegarLoopResult]: For program point L94(lines 94 98) no Hoare annotation was computed. [2020-10-19 22:24:03,347 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:24:03,347 INFO L274 CegarLoopResult]: For program point L524(lines 524 529) no Hoare annotation was computed. [2020-10-19 22:24:03,347 INFO L274 CegarLoopResult]: For program point L524-2(lines 523 537) no Hoare annotation was computed. [2020-10-19 22:24:03,348 INFO L270 CegarLoopResult]: At program point L194(lines 190 492) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4560)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) (.cse1 (<= 4560 ULTIMATE.start_ssl3_connect_~s__state~0))) (or (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1 .cse2) (and .cse0 (not .cse2) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse1))) [2020-10-19 22:24:03,348 INFO L270 CegarLoopResult]: At program point L128(lines 124 514) the Hoare annotation is: (and (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 1) (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) [2020-10-19 22:24:03,348 INFO L274 CegarLoopResult]: For program point L95(lines 95 97) no Hoare annotation was computed. [2020-10-19 22:24:03,348 INFO L274 CegarLoopResult]: For program point L526(lines 526 528) no Hoare annotation was computed. [2020-10-19 22:24:03,349 INFO L274 CegarLoopResult]: For program point L196(lines 196 490) no Hoare annotation was computed. [2020-10-19 22:24:03,349 INFO L274 CegarLoopResult]: For program point L163(lines 163 501) no Hoare annotation was computed. [2020-10-19 22:24:03,349 INFO L274 CegarLoopResult]: For program point L130(lines 130 512) no Hoare annotation was computed. [2020-10-19 22:24:03,349 INFO L274 CegarLoopResult]: For program point L362(lines 362 367) no Hoare annotation was computed. [2020-10-19 22:24:03,349 INFO L274 CegarLoopResult]: For program point L362-2(lines 362 367) no Hoare annotation was computed. [2020-10-19 22:24:03,349 INFO L274 CegarLoopResult]: For program point L230(lines 230 233) no Hoare annotation was computed. [2020-10-19 22:24:03,350 INFO L270 CegarLoopResult]: At program point L197(lines 196 490) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4352)) (.cse2 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and .cse0 (not .cse1) (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 3) (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse2) (and .cse0 (<= 4560 ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) .cse2 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse1))) [2020-10-19 22:24:03,350 INFO L270 CegarLoopResult]: At program point L164(lines 154 504) the Hoare annotation is: (and (<= 4432 ULTIMATE.start_ssl3_connect_~s__state~0) (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) (<= ULTIMATE.start_ssl3_connect_~s__state~0 4480) (= ULTIMATE.start_ssl3_connect_~s__hit~0 0)) [2020-10-19 22:24:03,350 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:24:03,350 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-19 22:24:03,350 INFO L274 CegarLoopResult]: For program point L462-1(lines 462 464) no Hoare annotation was computed. [2020-10-19 22:24:03,351 INFO L274 CegarLoopResult]: For program point L264(lines 264 266) no Hoare annotation was computed. [2020-10-19 22:24:03,351 INFO L277 CegarLoopResult]: At program point L562(lines 554 564) the Hoare annotation is: true [2020-10-19 22:24:03,351 INFO L274 CegarLoopResult]: For program point L199(lines 199 489) no Hoare annotation was computed. [2020-10-19 22:24:03,351 INFO L274 CegarLoopResult]: For program point L166(lines 166 500) no Hoare annotation was computed. [2020-10-19 22:24:03,351 INFO L274 CegarLoopResult]: For program point L133(lines 133 511) no Hoare annotation was computed. [2020-10-19 22:24:03,351 INFO L274 CegarLoopResult]: For program point L100-1(lines 77 552) no Hoare annotation was computed. [2020-10-19 22:24:03,352 INFO L274 CegarLoopResult]: For program point L398(lines 398 401) no Hoare annotation was computed. [2020-10-19 22:24:03,352 INFO L277 CegarLoopResult]: At program point L200(lines 199 489) the Hoare annotation is: true [2020-10-19 22:24:03,352 INFO L270 CegarLoopResult]: At program point L134(lines 130 512) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_connect_~s__state~0 4432)) (.cse1 (<= 4352 ULTIMATE.start_ssl3_connect_~s__state~0)) (.cse2 (= ULTIMATE.start_ssl3_connect_~s__hit~0 0))) (or (and (<= ULTIMATE.start_ssl3_connect_~blastFlag~0 4) .cse0 .cse1 (<= ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 4560) .cse2) (and (= ULTIMATE.start_ssl3_connect_~blastFlag~0 2) .cse0 .cse1 .cse2))) [2020-10-19 22:24:03,352 INFO L274 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-10-19 22:24:03,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:24:03 BoogieIcfgContainer [2020-10-19 22:24:03,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:24:03,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:24:03,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:24:03,378 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:24:03,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:23:44" (3/4) ... [2020-10-19 22:24:03,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:24:03,400 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-19 22:24:03,401 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:24:03,402 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:24:03,403 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:24:03,507 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:24:03,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:24:03,509 INFO L168 Benchmark]: Toolchain (without parser) took 20895.61 ms. Allocated memory was 35.7 MB in the beginning and 411.0 MB in the end (delta: 375.4 MB). Free memory was 15.0 MB in the beginning and 166.7 MB in the end (delta: -151.7 MB). Peak memory consumption was 223.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:03,509 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 10.3 MB in the beginning and 10.2 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-19 22:24:03,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.42 ms. Allocated memory was 35.7 MB in the beginning and 45.1 MB in the end (delta: 9.4 MB). Free memory was 14.0 MB in the beginning and 21.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:03,510 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.17 ms. Allocated memory is still 45.1 MB. Free memory was 21.8 MB in the beginning and 18.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:03,511 INFO L168 Benchmark]: Boogie Preprocessor took 43.59 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 18.7 MB in the beginning and 27.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:03,511 INFO L168 Benchmark]: RCFGBuilder took 888.27 ms. Allocated memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Free memory was 27.6 MB in the beginning and 27.4 MB in the end (delta: 196.6 kB). Peak memory consumption was 17.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:03,512 INFO L168 Benchmark]: TraceAbstraction took 19119.13 ms. Allocated memory was 48.8 MB in the beginning and 411.0 MB in the end (delta: 362.3 MB). Free memory was 27.1 MB in the beginning and 180.0 MB in the end (delta: -152.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:03,512 INFO L168 Benchmark]: Witness Printer took 129.79 ms. Allocated memory is still 411.0 MB. Free memory was 180.0 MB in the beginning and 166.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:03,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 34.1 MB. Free memory was 10.3 MB in the beginning and 10.2 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 612.42 ms. Allocated memory was 35.7 MB in the beginning and 45.1 MB in the end (delta: 9.4 MB). Free memory was 14.0 MB in the beginning and 21.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 91.17 ms. Allocated memory is still 45.1 MB. Free memory was 21.8 MB in the beginning and 18.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 43.59 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 18.7 MB in the beginning and 27.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 888.27 ms. Allocated memory was 46.7 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Free memory was 27.6 MB in the beginning and 27.4 MB in the end (delta: 196.6 kB). Peak memory consumption was 17.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 19119.13 ms. Allocated memory was 48.8 MB in the beginning and 411.0 MB in the end (delta: 362.3 MB). Free memory was 27.1 MB in the beginning and 180.0 MB in the end (delta: -152.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 14.3 GB. * Witness Printer took 129.79 ms. Allocated memory is still 411.0 MB. Free memory was 180.0 MB in the beginning and 166.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 118]: Loop Invariant Derived loop invariant: (blastFlag == 0 && s__state <= 4432) && 4352 <= s__state - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: s__state <= 4352 && blastFlag == 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: ((((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || (((blastFlag == 2 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0) - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4432 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0) || ((s__state <= 4560 && 4512 <= s__state) && blastFlag == 2)) || (((s__state <= 4560 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4448) && s__hit == 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: blastFlag == 0 && 12292 == s__state - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4512) && s__hit == 0 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (s__state <= 4432 && blastFlag == 1) && 4352 <= s__state - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (((((((((((((((s__state <= 4352 && !(s__hit == 0)) && s__s3__tmp__next_state___0 <= 3) && blastFlag == 2) && 4352 <= s__state) || (((blastFlag <= 4 && 4400 == s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0)) || (((s__state <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state)) || ((((s__state <= 4352 && 4560 <= s__s3__tmp__next_state___0) && 4352 <= s__state) && s__s3__tmp__next_state___0 <= 4560) && s__hit == 0)) || ((blastFlag <= 4 && s__state == 4416) && s__hit == 0)) || (blastFlag == 1 && s__state == 4384)) || ((blastFlag == 2 && s__state <= 3) && s__hit == 0)) || ((s__state <= 4528 && 4512 <= s__state) && blastFlag == 2)) || (s__state <= 3 && s__s3__tmp__next_state___0 <= 4560)) || (((s__state <= 4528 && 4432 <= s__state) && blastFlag <= 4) && s__hit == 0)) || (blastFlag == 0 && s__state == 4368)) || ((blastFlag == 2 && 4400 == s__state) && s__hit == 0) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((blastFlag <= 4 && s__state <= 4432) && 4352 <= s__state) && s__hit == 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((((s__state <= 4560 && 4560 <= s__s3__tmp__next_state___0) && s__s3__tmp__next_state___0 <= 4560) && 4560 <= s__state) && s__hit == 0) || (((s__state <= 4560 && !(s__hit == 0)) && blastFlag == 2) && 4560 <= s__state) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4464) && s__hit == 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((4432 <= s__state && blastFlag <= 4) && s__state <= 4480) && s__hit == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 129 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.3s, OverallIterations: 27, TraceHistogramMax: 22, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4907 SDtfs, 2135 SDslu, 2647 SDs, 0 SdLazy, 2485 SolverSat, 611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2468 GetRequests, 2431 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5789occurred in iteration=23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 27 MinimizatonAttempts, 4017 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 155 NumberOfFragments, 425 HoareAnnotationTreeSize, 22 FomulaSimplifications, 9035 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 22 FomulaSimplificationsInter, 2018 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 8796 NumberOfCodeBlocks, 8796 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 8764 ConstructedInterpolants, 0 QuantifiedInterpolants, 4603118 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4093 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 32 InterpolantComputations, 24 PerfectInterpolantSequences, 39205/39291 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...