/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_8.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 15:40:42,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 15:40:42,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 15:40:42,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 15:40:42,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 15:40:42,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 15:40:42,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 15:40:42,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 15:40:42,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 15:40:42,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 15:40:42,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 15:40:42,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 15:40:42,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 15:40:42,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 15:40:42,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 15:40:42,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 15:40:42,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 15:40:42,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 15:40:42,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 15:40:42,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 15:40:42,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 15:40:42,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 15:40:42,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 15:40:42,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 15:40:42,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 15:40:42,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 15:40:42,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 15:40:42,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 15:40:42,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 15:40:42,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 15:40:42,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 15:40:42,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 15:40:42,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 15:40:42,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 15:40:42,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 15:40:42,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 15:40:42,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 15:40:42,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 15:40:42,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 15:40:42,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 15:40:42,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 15:40:42,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 15:40:42,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 15:40:42,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 15:40:42,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 15:40:42,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 15:40:42,374 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 15:40:42,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 15:40:42,375 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 15:40:42,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 15:40:42,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 15:40:42,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 15:40:42,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 15:40:42,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 15:40:42,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 15:40:42,376 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 15:40:42,376 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 15:40:42,376 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 15:40:42,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 15:40:42,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 15:40:42,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 15:40:42,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 15:40:42,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 15:40:42,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 15:40:42,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 15:40:42,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 15:40:42,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 15:40:42,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 15:40:42,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 15:40:42,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 15:40:42,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 15:40:42,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 15:40:42,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 15:40:42,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 15:40:42,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 15:40:42,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 15:40:42,680 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 15:40:42,685 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_8.cil.c [2020-10-13 15:40:42,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/558af3e04/37aab29b21d1462c8f2a2975b5334444/FLAGf6071f44a [2020-10-13 15:40:43,176 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 15:40:43,177 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_8.cil.c [2020-10-13 15:40:43,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/558af3e04/37aab29b21d1462c8f2a2975b5334444/FLAGf6071f44a [2020-10-13 15:40:43,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/558af3e04/37aab29b21d1462c8f2a2975b5334444 [2020-10-13 15:40:43,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 15:40:43,595 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 15:40:43,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 15:40:43,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 15:40:43,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 15:40:43,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:40:43" (1/1) ... [2020-10-13 15:40:43,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18cc86df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:43, skipping insertion in model container [2020-10-13 15:40:43,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:40:43" (1/1) ... [2020-10-13 15:40:43,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 15:40:43,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 15:40:44,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 15:40:44,024 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 15:40:44,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 15:40:44,267 INFO L208 MainTranslator]: Completed translation [2020-10-13 15:40:44,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44 WrapperNode [2020-10-13 15:40:44,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 15:40:44,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 15:40:44,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 15:40:44,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 15:40:44,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (1/1) ... [2020-10-13 15:40:44,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (1/1) ... [2020-10-13 15:40:44,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (1/1) ... [2020-10-13 15:40:44,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (1/1) ... [2020-10-13 15:40:44,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (1/1) ... [2020-10-13 15:40:44,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (1/1) ... [2020-10-13 15:40:44,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (1/1) ... [2020-10-13 15:40:44,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 15:40:44,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 15:40:44,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 15:40:44,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 15:40:44,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-13 15:40:44,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 15:40:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 15:40:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-10-13 15:40:44,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 15:40:44,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 15:40:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-13 15:40:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 15:40:44,443 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 15:40:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-10-13 15:40:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 15:40:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 15:40:44,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 15:40:44,635 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-13 15:40:45,183 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-10-13 15:40:45,183 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-10-13 15:40:45,196 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 15:40:45,196 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 15:40:45,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:40:45 BoogieIcfgContainer [2020-10-13 15:40:45,202 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 15:40:45,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 15:40:45,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 15:40:45,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 15:40:45,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 03:40:43" (1/3) ... [2020-10-13 15:40:45,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7937cfe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:40:45, skipping insertion in model container [2020-10-13 15:40:45,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:40:44" (2/3) ... [2020-10-13 15:40:45,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7937cfe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 03:40:45, skipping insertion in model container [2020-10-13 15:40:45,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:40:45" (3/3) ... [2020-10-13 15:40:45,211 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_8.cil.c [2020-10-13 15:40:45,223 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 15:40:45,232 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 15:40:45,247 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 15:40:45,274 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 15:40:45,274 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 15:40:45,275 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 15:40:45,275 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 15:40:45,275 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 15:40:45,275 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 15:40:45,275 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 15:40:45,275 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 15:40:45,299 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2020-10-13 15:40:45,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 15:40:45,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:45,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:45,312 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:45,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:45,317 INFO L82 PathProgramCache]: Analyzing trace with hash -617772913, now seen corresponding path program 1 times [2020-10-13 15:40:45,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:45,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6732594] [2020-10-13 15:40:45,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:45,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:45,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:45,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:46,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-13 15:40:46,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:46,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 633 [2020-10-13 15:40:46,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:40:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 15:40:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 15:40:46,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 15:40:46,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:46,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:46,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:46,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:46,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:46,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:46,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:46,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:46,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:46,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 15:40:46,242 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [6732594] [2020-10-13 15:40:46,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:46,245 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:40:46,245 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513375038] [2020-10-13 15:40:46,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:40:46,251 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:46,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:40:46,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:40:46,268 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 5 states. [2020-10-13 15:40:46,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:46,553 INFO L93 Difference]: Finished difference Result 323 states and 548 transitions. [2020-10-13 15:40:46,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:40:46,555 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-10-13 15:40:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:46,569 INFO L225 Difference]: With dead ends: 323 [2020-10-13 15:40:46,569 INFO L226 Difference]: Without dead ends: 160 [2020-10-13 15:40:46,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 15:40:46,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-10-13 15:40:46,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2020-10-13 15:40:46,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-13 15:40:46,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 236 transitions. [2020-10-13 15:40:46,631 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 236 transitions. Word has length 47 [2020-10-13 15:40:46,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:46,632 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 236 transitions. [2020-10-13 15:40:46,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:40:46,632 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 236 transitions. [2020-10-13 15:40:46,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 15:40:46,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:46,635 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 15:40:46,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 15:40:46,636 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:46,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:46,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1925191086, now seen corresponding path program 1 times [2020-10-13 15:40:46,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:46,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949512776] [2020-10-13 15:40:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:46,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:46,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 15:40:46,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:46,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-13 15:40:46,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:46,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:46,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 15:40:46,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 15:40:46,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:46,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:46,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:46,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:46,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:46,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:46,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:46,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:46,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:46,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:46,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:46,909 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 15:40:46,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949512776] [2020-10-13 15:40:46,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:46,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:46,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542583034] [2020-10-13 15:40:46,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:46,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:46,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:46,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:46,913 INFO L87 Difference]: Start difference. First operand 157 states and 236 transitions. Second operand 3 states. [2020-10-13 15:40:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:47,086 INFO L93 Difference]: Finished difference Result 326 states and 499 transitions. [2020-10-13 15:40:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:47,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-10-13 15:40:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:47,089 INFO L225 Difference]: With dead ends: 326 [2020-10-13 15:40:47,089 INFO L226 Difference]: Without dead ends: 182 [2020-10-13 15:40:47,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:47,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-10-13 15:40:47,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2020-10-13 15:40:47,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-13 15:40:47,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 262 transitions. [2020-10-13 15:40:47,109 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 262 transitions. Word has length 63 [2020-10-13 15:40:47,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:47,109 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 262 transitions. [2020-10-13 15:40:47,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 262 transitions. [2020-10-13 15:40:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 15:40:47,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:47,117 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:47,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 15:40:47,117 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:47,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:47,118 INFO L82 PathProgramCache]: Analyzing trace with hash -79560674, now seen corresponding path program 1 times [2020-10-13 15:40:47,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:47,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891617500] [2020-10-13 15:40:47,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:47,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:47,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 15:40:47,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:40:47,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-13 15:40:47,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 15:40:47,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 15:40:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:47,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:47,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:47,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:47,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:47,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:47,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:47,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:47,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:47,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 15:40:47,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891617500] [2020-10-13 15:40:47,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:47,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:47,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007005524] [2020-10-13 15:40:47,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:47,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:47,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:47,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:47,413 INFO L87 Difference]: Start difference. First operand 178 states and 262 transitions. Second operand 3 states. [2020-10-13 15:40:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:47,614 INFO L93 Difference]: Finished difference Result 398 states and 603 transitions. [2020-10-13 15:40:47,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:47,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-10-13 15:40:47,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:47,618 INFO L225 Difference]: With dead ends: 398 [2020-10-13 15:40:47,618 INFO L226 Difference]: Without dead ends: 233 [2020-10-13 15:40:47,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-13 15:40:47,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 219. [2020-10-13 15:40:47,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-10-13 15:40:47,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 311 transitions. [2020-10-13 15:40:47,635 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 311 transitions. Word has length 84 [2020-10-13 15:40:47,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:47,635 INFO L479 AbstractCegarLoop]: Abstraction has 219 states and 311 transitions. [2020-10-13 15:40:47,635 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:47,636 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 311 transitions. [2020-10-13 15:40:47,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-13 15:40:47,638 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:47,639 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:47,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 15:40:47,639 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:47,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:47,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1451367972, now seen corresponding path program 1 times [2020-10-13 15:40:47,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:47,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913314305] [2020-10-13 15:40:47,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:47,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:47,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 15:40:47,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:47,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-13 15:40:47,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:47,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 15:40:47,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 15:40:47,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:47,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:47,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:47,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:47,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:47,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:47,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:47,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:47,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:47,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:47,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:47,917 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 15:40:47,917 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913314305] [2020-10-13 15:40:47,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:47,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:47,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764239696] [2020-10-13 15:40:47,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:47,919 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:47,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:47,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:47,919 INFO L87 Difference]: Start difference. First operand 219 states and 311 transitions. Second operand 3 states. [2020-10-13 15:40:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:48,092 INFO L93 Difference]: Finished difference Result 452 states and 652 transitions. [2020-10-13 15:40:48,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:48,093 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-10-13 15:40:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:48,095 INFO L225 Difference]: With dead ends: 452 [2020-10-13 15:40:48,095 INFO L226 Difference]: Without dead ends: 246 [2020-10-13 15:40:48,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:48,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-10-13 15:40:48,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 242. [2020-10-13 15:40:48,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-13 15:40:48,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 339 transitions. [2020-10-13 15:40:48,108 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 339 transitions. Word has length 84 [2020-10-13 15:40:48,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:48,109 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 339 transitions. [2020-10-13 15:40:48,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:48,109 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 339 transitions. [2020-10-13 15:40:48,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-13 15:40:48,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:48,112 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:48,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 15:40:48,112 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:48,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:48,113 INFO L82 PathProgramCache]: Analyzing trace with hash 416593481, now seen corresponding path program 1 times [2020-10-13 15:40:48,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:48,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527119814] [2020-10-13 15:40:48,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:48,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:48,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 15:40:48,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 15:40:48,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 610 [2020-10-13 15:40:48,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:48,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-13 15:40:48,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 15:40:48,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:48,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:48,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:48,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:48,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:48,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:48,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:48,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:48,781 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 15:40:48,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527119814] [2020-10-13 15:40:48,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:48,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:48,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111073300] [2020-10-13 15:40:48,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:48,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:48,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:48,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:48,783 INFO L87 Difference]: Start difference. First operand 242 states and 339 transitions. Second operand 3 states. [2020-10-13 15:40:48,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:48,797 INFO L93 Difference]: Finished difference Result 458 states and 641 transitions. [2020-10-13 15:40:48,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:48,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-10-13 15:40:48,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:48,800 INFO L225 Difference]: With dead ends: 458 [2020-10-13 15:40:48,800 INFO L226 Difference]: Without dead ends: 224 [2020-10-13 15:40:48,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:48,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-13 15:40:48,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-10-13 15:40:48,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-13 15:40:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 305 transitions. [2020-10-13 15:40:48,810 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 305 transitions. Word has length 97 [2020-10-13 15:40:48,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:48,811 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 305 transitions. [2020-10-13 15:40:48,811 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 305 transitions. [2020-10-13 15:40:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-13 15:40:48,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:48,814 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:48,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 15:40:48,814 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:48,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1350569628, now seen corresponding path program 1 times [2020-10-13 15:40:48,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:48,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546716154] [2020-10-13 15:40:48,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:48,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:48,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:49,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 15:40:49,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:49,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-13 15:40:49,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 15:40:49,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 15:40:49,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:49,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:49,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:49,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:49,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:49,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:49,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:49,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:49,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:49,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:49,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:49,105 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-13 15:40:49,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546716154] [2020-10-13 15:40:49,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:49,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:49,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198091253] [2020-10-13 15:40:49,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:49,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:49,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:49,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:49,108 INFO L87 Difference]: Start difference. First operand 224 states and 305 transitions. Second operand 3 states. [2020-10-13 15:40:49,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:49,259 INFO L93 Difference]: Finished difference Result 462 states and 644 transitions. [2020-10-13 15:40:49,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:49,260 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-10-13 15:40:49,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:49,262 INFO L225 Difference]: With dead ends: 462 [2020-10-13 15:40:49,262 INFO L226 Difference]: Without dead ends: 262 [2020-10-13 15:40:49,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-13 15:40:49,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 249. [2020-10-13 15:40:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-10-13 15:40:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 335 transitions. [2020-10-13 15:40:49,272 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 335 transitions. Word has length 105 [2020-10-13 15:40:49,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:49,273 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 335 transitions. [2020-10-13 15:40:49,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:49,273 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 335 transitions. [2020-10-13 15:40:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-13 15:40:49,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:49,275 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:49,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 15:40:49,275 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:49,276 INFO L82 PathProgramCache]: Analyzing trace with hash -2011448529, now seen corresponding path program 1 times [2020-10-13 15:40:49,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:49,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816866765] [2020-10-13 15:40:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:49,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:49,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 15:40:49,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 15:40:49,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-13 15:40:49,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 15:40:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 15:40:49,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:49,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:49,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:49,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:49,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:49,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:49,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:49,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:49,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:49,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:49,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:49,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:49,905 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-13 15:40:49,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816866765] [2020-10-13 15:40:49,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:49,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:49,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994553236] [2020-10-13 15:40:49,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:49,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:49,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:49,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:49,909 INFO L87 Difference]: Start difference. First operand 249 states and 335 transitions. Second operand 3 states. [2020-10-13 15:40:50,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:50,055 INFO L93 Difference]: Finished difference Result 505 states and 695 transitions. [2020-10-13 15:40:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:50,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-10-13 15:40:50,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:50,060 INFO L225 Difference]: With dead ends: 505 [2020-10-13 15:40:50,061 INFO L226 Difference]: Without dead ends: 280 [2020-10-13 15:40:50,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:50,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-10-13 15:40:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2020-10-13 15:40:50,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-13 15:40:50,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 371 transitions. [2020-10-13 15:40:50,072 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 371 transitions. Word has length 126 [2020-10-13 15:40:50,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:50,072 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 371 transitions. [2020-10-13 15:40:50,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:50,073 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 371 transitions. [2020-10-13 15:40:50,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-10-13 15:40:50,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:50,075 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:50,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 15:40:50,075 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:50,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:50,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1732620783, now seen corresponding path program 1 times [2020-10-13 15:40:50,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:50,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757075480] [2020-10-13 15:40:50,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:50,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:50,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-13 15:40:50,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-13 15:40:50,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-13 15:40:50,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 15:40:50,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:50,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:50,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:50,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:50,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:50,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:50,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:50,344 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 15:40:50,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757075480] [2020-10-13 15:40:50,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:50,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:50,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922466398] [2020-10-13 15:40:50,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:50,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:50,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:50,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:50,346 INFO L87 Difference]: Start difference. First operand 280 states and 371 transitions. Second operand 3 states. [2020-10-13 15:40:50,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:50,503 INFO L93 Difference]: Finished difference Result 571 states and 772 transitions. [2020-10-13 15:40:50,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:50,503 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2020-10-13 15:40:50,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:50,506 INFO L225 Difference]: With dead ends: 571 [2020-10-13 15:40:50,506 INFO L226 Difference]: Without dead ends: 315 [2020-10-13 15:40:50,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-10-13 15:40:50,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 307. [2020-10-13 15:40:50,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-10-13 15:40:50,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 403 transitions. [2020-10-13 15:40:50,519 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 403 transitions. Word has length 131 [2020-10-13 15:40:50,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:50,519 INFO L479 AbstractCegarLoop]: Abstraction has 307 states and 403 transitions. [2020-10-13 15:40:50,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:50,520 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 403 transitions. [2020-10-13 15:40:50,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 15:40:50,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:50,522 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:50,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 15:40:50,522 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:50,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1651302486, now seen corresponding path program 1 times [2020-10-13 15:40:50,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:50,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338624575] [2020-10-13 15:40:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:50,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:50,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:51,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 15:40:51,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 15:40:51,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 523 [2020-10-13 15:40:51,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:51,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 15:40:51,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-13 15:40:51,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:51,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:51,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:51,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:51,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:51,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:51,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:51,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:51,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:51,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:51,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-13 15:40:51,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338624575] [2020-10-13 15:40:51,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:51,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:51,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153360032] [2020-10-13 15:40:51,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:51,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:51,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:51,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:51,132 INFO L87 Difference]: Start difference. First operand 307 states and 403 transitions. Second operand 3 states. [2020-10-13 15:40:51,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:51,292 INFO L93 Difference]: Finished difference Result 636 states and 833 transitions. [2020-10-13 15:40:51,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:51,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-10-13 15:40:51,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:51,295 INFO L225 Difference]: With dead ends: 636 [2020-10-13 15:40:51,295 INFO L226 Difference]: Without dead ends: 353 [2020-10-13 15:40:51,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:51,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2020-10-13 15:40:51,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 347. [2020-10-13 15:40:51,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2020-10-13 15:40:51,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 448 transitions. [2020-10-13 15:40:51,307 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 448 transitions. Word has length 154 [2020-10-13 15:40:51,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:51,308 INFO L479 AbstractCegarLoop]: Abstraction has 347 states and 448 transitions. [2020-10-13 15:40:51,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 448 transitions. [2020-10-13 15:40:51,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-13 15:40:51,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:51,311 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:51,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 15:40:51,312 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:51,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:51,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1069534781, now seen corresponding path program 1 times [2020-10-13 15:40:51,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:51,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926585483] [2020-10-13 15:40:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:51,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:51,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 15:40:51,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:51,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-13 15:40:51,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 123 [2020-10-13 15:40:51,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 15:40:51,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:51,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:51,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:51,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:51,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:51,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:51,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:51,651 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-13 15:40:51,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926585483] [2020-10-13 15:40:51,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:51,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:51,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981235729] [2020-10-13 15:40:51,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:51,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:51,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:51,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:51,653 INFO L87 Difference]: Start difference. First operand 347 states and 448 transitions. Second operand 3 states. [2020-10-13 15:40:51,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:51,808 INFO L93 Difference]: Finished difference Result 701 states and 919 transitions. [2020-10-13 15:40:51,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:51,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-10-13 15:40:51,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:51,812 INFO L225 Difference]: With dead ends: 701 [2020-10-13 15:40:51,812 INFO L226 Difference]: Without dead ends: 378 [2020-10-13 15:40:51,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2020-10-13 15:40:51,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2020-10-13 15:40:51,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 15:40:51,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 482 transitions. [2020-10-13 15:40:51,824 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 482 transitions. Word has length 154 [2020-10-13 15:40:51,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:51,825 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 482 transitions. [2020-10-13 15:40:51,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:51,825 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 482 transitions. [2020-10-13 15:40:51,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-13 15:40:51,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:51,828 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 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] [2020-10-13 15:40:51,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 15:40:51,829 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:51,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:51,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1628821973, now seen corresponding path program 1 times [2020-10-13 15:40:51,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:51,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801680056] [2020-10-13 15:40:51,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:51,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:51,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:52,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:52,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:52,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:52,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 15:40:52,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:40:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-13 15:40:52,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 15:40:52,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 15:40:52,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 15:40:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:52,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:52,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:52,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:52,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:52,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:52,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:52,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:52,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:52,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-10-13 15:40:53,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801680056] [2020-10-13 15:40:53,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:53,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 15:40:53,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683979329] [2020-10-13 15:40:53,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 15:40:53,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:53,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 15:40:53,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:40:53,006 INFO L87 Difference]: Start difference. First operand 376 states and 482 transitions. Second operand 5 states. [2020-10-13 15:40:53,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:53,187 INFO L93 Difference]: Finished difference Result 2422 states and 3122 transitions. [2020-10-13 15:40:53,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 15:40:53,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 187 [2020-10-13 15:40:53,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:53,200 INFO L225 Difference]: With dead ends: 2422 [2020-10-13 15:40:53,200 INFO L226 Difference]: Without dead ends: 2070 [2020-10-13 15:40:53,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 15:40:53,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2020-10-13 15:40:53,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 725. [2020-10-13 15:40:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-10-13 15:40:53,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 932 transitions. [2020-10-13 15:40:53,247 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 932 transitions. Word has length 187 [2020-10-13 15:40:53,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:53,248 INFO L479 AbstractCegarLoop]: Abstraction has 725 states and 932 transitions. [2020-10-13 15:40:53,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 15:40:53,248 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 932 transitions. [2020-10-13 15:40:53,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-10-13 15:40:53,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:53,252 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 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] [2020-10-13 15:40:53,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 15:40:53,252 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:53,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:53,253 INFO L82 PathProgramCache]: Analyzing trace with hash -668462687, now seen corresponding path program 1 times [2020-10-13 15:40:53,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:53,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473029156] [2020-10-13 15:40:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:53,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:53,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:53,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:53,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:53,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-13 15:40:53,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 15:40:53,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 366 [2020-10-13 15:40:53,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:40:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-13 15:40:53,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-13 15:40:53,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:53,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:53,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:53,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:53,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:53,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:53,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:53,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:53,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:53,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:53,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:53,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:53,750 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-13 15:40:53,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473029156] [2020-10-13 15:40:53,751 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 15:40:53,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-13 15:40:53,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433341378] [2020-10-13 15:40:53,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 15:40:53,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:53,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 15:40:53,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 15:40:53,752 INFO L87 Difference]: Start difference. First operand 725 states and 932 transitions. Second operand 4 states. [2020-10-13 15:40:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:54,074 INFO L93 Difference]: Finished difference Result 2205 states and 2868 transitions. [2020-10-13 15:40:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 15:40:54,074 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 188 [2020-10-13 15:40:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:54,082 INFO L225 Difference]: With dead ends: 2205 [2020-10-13 15:40:54,082 INFO L226 Difference]: Without dead ends: 1504 [2020-10-13 15:40:54,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:40:54,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2020-10-13 15:40:54,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 967. [2020-10-13 15:40:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 967 states. [2020-10-13 15:40:54,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1266 transitions. [2020-10-13 15:40:54,121 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1266 transitions. Word has length 188 [2020-10-13 15:40:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:54,121 INFO L479 AbstractCegarLoop]: Abstraction has 967 states and 1266 transitions. [2020-10-13 15:40:54,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 15:40:54,122 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1266 transitions. [2020-10-13 15:40:54,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-13 15:40:54,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:54,126 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:54,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 15:40:54,126 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:54,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:54,126 INFO L82 PathProgramCache]: Analyzing trace with hash -845275759, now seen corresponding path program 1 times [2020-10-13 15:40:54,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:54,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009127414] [2020-10-13 15:40:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:54,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:54,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-13 15:40:54,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:40:54,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-13 15:40:54,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-13 15:40:54,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 15:40:54,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:54,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:54,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:54,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:54,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:54,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:54,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:54,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:54,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:54,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:54,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 15:40:54,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009127414] [2020-10-13 15:40:54,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:54,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:54,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084595194] [2020-10-13 15:40:54,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:54,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:54,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:54,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:54,391 INFO L87 Difference]: Start difference. First operand 967 states and 1266 transitions. Second operand 3 states. [2020-10-13 15:40:54,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:54,515 INFO L93 Difference]: Finished difference Result 2829 states and 3707 transitions. [2020-10-13 15:40:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:54,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-10-13 15:40:54,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:54,526 INFO L225 Difference]: With dead ends: 2829 [2020-10-13 15:40:54,526 INFO L226 Difference]: Without dead ends: 1886 [2020-10-13 15:40:54,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:54,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1886 states. [2020-10-13 15:40:54,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1886 to 1886. [2020-10-13 15:40:54,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1886 states. [2020-10-13 15:40:54,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1886 states to 1886 states and 2449 transitions. [2020-10-13 15:40:54,614 INFO L78 Accepts]: Start accepts. Automaton has 1886 states and 2449 transitions. Word has length 194 [2020-10-13 15:40:54,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:54,615 INFO L479 AbstractCegarLoop]: Abstraction has 1886 states and 2449 transitions. [2020-10-13 15:40:54,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1886 states and 2449 transitions. [2020-10-13 15:40:54,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-13 15:40:54,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:54,620 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:54,620 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 15:40:54,621 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:54,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:54,621 INFO L82 PathProgramCache]: Analyzing trace with hash -977462684, now seen corresponding path program 1 times [2020-10-13 15:40:54,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:54,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184969531] [2020-10-13 15:40:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:54,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:54,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 203 [2020-10-13 15:40:54,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:40:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-10-13 15:40:54,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-13 15:40:54,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 15:40:54,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:54,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:54,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:54,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:54,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:54,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:54,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:54,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:54,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:54,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:54,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-10-13 15:40:54,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184969531] [2020-10-13 15:40:54,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:54,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:54,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190088100] [2020-10-13 15:40:54,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:54,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:54,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:54,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:54,976 INFO L87 Difference]: Start difference. First operand 1886 states and 2449 transitions. Second operand 3 states. [2020-10-13 15:40:55,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:55,074 INFO L93 Difference]: Finished difference Result 3852 states and 4998 transitions. [2020-10-13 15:40:55,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:55,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2020-10-13 15:40:55,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:55,084 INFO L225 Difference]: With dead ends: 3852 [2020-10-13 15:40:55,084 INFO L226 Difference]: Without dead ends: 1990 [2020-10-13 15:40:55,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:55,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2020-10-13 15:40:55,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1990. [2020-10-13 15:40:55,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2020-10-13 15:40:55,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2569 transitions. [2020-10-13 15:40:55,164 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2569 transitions. Word has length 195 [2020-10-13 15:40:55,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:55,165 INFO L479 AbstractCegarLoop]: Abstraction has 1990 states and 2569 transitions. [2020-10-13 15:40:55,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:55,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2569 transitions. [2020-10-13 15:40:55,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 15:40:55,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:55,169 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:55,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 15:40:55,170 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:55,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:55,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1343385817, now seen corresponding path program 1 times [2020-10-13 15:40:55,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:55,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054902059] [2020-10-13 15:40:55,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:55,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:55,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-13 15:40:55,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:40:55,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-13 15:40:55,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:55,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 15:40:55,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 15:40:55,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:55,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:55,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:55,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:55,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:55,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:55,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:55,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:55,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:55,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:55,601 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-13 15:40:55,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054902059] [2020-10-13 15:40:55,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:55,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:55,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163383034] [2020-10-13 15:40:55,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:55,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:55,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:55,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:55,605 INFO L87 Difference]: Start difference. First operand 1990 states and 2569 transitions. Second operand 3 states. [2020-10-13 15:40:55,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:55,747 INFO L93 Difference]: Finished difference Result 4811 states and 6247 transitions. [2020-10-13 15:40:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:55,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2020-10-13 15:40:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:55,761 INFO L225 Difference]: With dead ends: 4811 [2020-10-13 15:40:55,762 INFO L226 Difference]: Without dead ends: 2845 [2020-10-13 15:40:55,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2020-10-13 15:40:55,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2845. [2020-10-13 15:40:55,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2845 states. [2020-10-13 15:40:55,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 3682 transitions. [2020-10-13 15:40:55,875 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 3682 transitions. Word has length 196 [2020-10-13 15:40:55,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:55,876 INFO L479 AbstractCegarLoop]: Abstraction has 2845 states and 3682 transitions. [2020-10-13 15:40:55,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:55,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 3682 transitions. [2020-10-13 15:40:55,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 15:40:55,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:55,882 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:55,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 15:40:55,882 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:55,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1954654875, now seen corresponding path program 1 times [2020-10-13 15:40:55,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:55,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282524333] [2020-10-13 15:40:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:55,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:55,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:56,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-13 15:40:56,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:40:56,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-13 15:40:56,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-13 15:40:56,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 15:40:56,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:56,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:56,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:56,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:56,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:56,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:56,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:56,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:56,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:56,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:56,315 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2020-10-13 15:40:56,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282524333] [2020-10-13 15:40:56,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:56,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:56,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305334677] [2020-10-13 15:40:56,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:56,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:56,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:56,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:56,321 INFO L87 Difference]: Start difference. First operand 2845 states and 3682 transitions. Second operand 3 states. [2020-10-13 15:40:56,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:56,508 INFO L93 Difference]: Finished difference Result 5714 states and 7396 transitions. [2020-10-13 15:40:56,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:56,509 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2020-10-13 15:40:56,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:56,528 INFO L225 Difference]: With dead ends: 5714 [2020-10-13 15:40:56,528 INFO L226 Difference]: Without dead ends: 2893 [2020-10-13 15:40:56,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:56,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2020-10-13 15:40:56,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2893. [2020-10-13 15:40:56,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2020-10-13 15:40:56,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 3740 transitions. [2020-10-13 15:40:56,708 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 3740 transitions. Word has length 196 [2020-10-13 15:40:56,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:56,708 INFO L479 AbstractCegarLoop]: Abstraction has 2893 states and 3740 transitions. [2020-10-13 15:40:56,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 3740 transitions. [2020-10-13 15:40:56,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-13 15:40:56,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:56,717 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:56,717 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 15:40:56,717 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:56,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:56,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1427260825, now seen corresponding path program 1 times [2020-10-13 15:40:56,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:56,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [441679753] [2020-10-13 15:40:56,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:56,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:56,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:57,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-10-13 15:40:57,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 15:40:57,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-10-13 15:40:57,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:57,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:57,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 15:40:57,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 15:40:57,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:57,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:57,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:57,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:57,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:57,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:57,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:57,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:57,134 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2020-10-13 15:40:57,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [441679753] [2020-10-13 15:40:57,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:57,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:57,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224821446] [2020-10-13 15:40:57,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:57,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:57,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:57,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:57,138 INFO L87 Difference]: Start difference. First operand 2893 states and 3740 transitions. Second operand 3 states. [2020-10-13 15:40:57,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:57,297 INFO L93 Difference]: Finished difference Result 5764 states and 7455 transitions. [2020-10-13 15:40:57,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:57,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2020-10-13 15:40:57,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:57,315 INFO L225 Difference]: With dead ends: 5764 [2020-10-13 15:40:57,315 INFO L226 Difference]: Without dead ends: 2895 [2020-10-13 15:40:57,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:57,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2020-10-13 15:40:57,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2895. [2020-10-13 15:40:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2895 states. [2020-10-13 15:40:57,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 3742 transitions. [2020-10-13 15:40:57,520 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 3742 transitions. Word has length 196 [2020-10-13 15:40:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:57,520 INFO L479 AbstractCegarLoop]: Abstraction has 2895 states and 3742 transitions. [2020-10-13 15:40:57,520 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 3742 transitions. [2020-10-13 15:40:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-13 15:40:57,531 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:57,532 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2020-10-13 15:40:57,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 15:40:57,532 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:57,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:57,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1092711981, now seen corresponding path program 1 times [2020-10-13 15:40:57,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:57,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487813648] [2020-10-13 15:40:57,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:57,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:57,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-13 15:40:57,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 15:40:57,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-13 15:40:57,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:57,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-10-13 15:40:57,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 15:40:57,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:57,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:57,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:57,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:57,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:57,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:57,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:40:57,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:57,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:57,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:40:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2020-10-13 15:40:57,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487813648] [2020-10-13 15:40:57,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:57,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:57,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338781918] [2020-10-13 15:40:57,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:57,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:57,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:57,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:57,958 INFO L87 Difference]: Start difference. First operand 2895 states and 3742 transitions. Second operand 3 states. [2020-10-13 15:40:58,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:58,238 INFO L93 Difference]: Finished difference Result 6256 states and 8324 transitions. [2020-10-13 15:40:58,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:58,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-10-13 15:40:58,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:58,253 INFO L225 Difference]: With dead ends: 6256 [2020-10-13 15:40:58,253 INFO L226 Difference]: Without dead ends: 2875 [2020-10-13 15:40:58,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:58,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2020-10-13 15:40:58,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2835. [2020-10-13 15:40:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2835 states. [2020-10-13 15:40:58,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 3644 transitions. [2020-10-13 15:40:58,373 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 3644 transitions. Word has length 232 [2020-10-13 15:40:58,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:58,374 INFO L479 AbstractCegarLoop]: Abstraction has 2835 states and 3644 transitions. [2020-10-13 15:40:58,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:58,374 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 3644 transitions. [2020-10-13 15:40:58,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-13 15:40:58,384 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:58,384 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 4, 4, 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] [2020-10-13 15:40:58,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 15:40:58,385 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:58,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:58,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1729777908, now seen corresponding path program 1 times [2020-10-13 15:40:58,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:58,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703125099] [2020-10-13 15:40:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:58,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:58,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:58,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:58,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:58,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:59,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:59,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 352 [2020-10-13 15:40:59,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 15:40:59,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 665 [2020-10-13 15:40:59,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:40:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-10-13 15:40:59,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 15:40:59,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:40:59,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:40:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:59,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:59,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:40:59,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:40:59,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:40:59,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:40:59,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:40:59,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:40:59,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:40:59,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:40:59,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 15:40:59,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 783 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2020-10-13 15:40:59,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703125099] [2020-10-13 15:40:59,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:40:59,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:40:59,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431599077] [2020-10-13 15:40:59,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:40:59,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:40:59,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:40:59,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:59,313 INFO L87 Difference]: Start difference. First operand 2835 states and 3644 transitions. Second operand 3 states. [2020-10-13 15:40:59,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:40:59,489 INFO L93 Difference]: Finished difference Result 8219 states and 10598 transitions. [2020-10-13 15:40:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:40:59,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 344 [2020-10-13 15:40:59,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:40:59,507 INFO L225 Difference]: With dead ends: 8219 [2020-10-13 15:40:59,507 INFO L226 Difference]: Without dead ends: 3614 [2020-10-13 15:40:59,518 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:40:59,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2020-10-13 15:40:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3608. [2020-10-13 15:40:59,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3608 states. [2020-10-13 15:40:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 4649 transitions. [2020-10-13 15:40:59,659 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 4649 transitions. Word has length 344 [2020-10-13 15:40:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:40:59,660 INFO L479 AbstractCegarLoop]: Abstraction has 3608 states and 4649 transitions. [2020-10-13 15:40:59,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:40:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 4649 transitions. [2020-10-13 15:40:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2020-10-13 15:40:59,675 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:40:59,675 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:40:59,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 15:40:59,675 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:40:59,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:40:59,676 INFO L82 PathProgramCache]: Analyzing trace with hash -984848787, now seen corresponding path program 1 times [2020-10-13 15:40:59,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:40:59,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799551673] [2020-10-13 15:40:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:40:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:40:59,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:59,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:40:59,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:00,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:00,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:00,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:01,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:02,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:02,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 486 [2020-10-13 15:41:02,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 15:41:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2515 [2020-10-13 15:41:02,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:41:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-10-13 15:41:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 15:41:02,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:41:02,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:41:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:02,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:02,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:02,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:41:02,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:41:02,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:41:02,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:41:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:41:02,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:41:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:41:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2331 backedges. 1227 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2020-10-13 15:41:02,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799551673] [2020-10-13 15:41:02,455 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:41:02,455 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:41:02,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872838197] [2020-10-13 15:41:02,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:41:02,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:41:02,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:41:02,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:41:02,457 INFO L87 Difference]: Start difference. First operand 3608 states and 4649 transitions. Second operand 3 states. [2020-10-13 15:41:02,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:41:02,683 INFO L93 Difference]: Finished difference Result 7536 states and 9776 transitions. [2020-10-13 15:41:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:41:02,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 478 [2020-10-13 15:41:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:41:02,715 INFO L225 Difference]: With dead ends: 7536 [2020-10-13 15:41:02,716 INFO L226 Difference]: Without dead ends: 3954 [2020-10-13 15:41:02,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:41:02,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2020-10-13 15:41:02,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3768. [2020-10-13 15:41:02,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3768 states. [2020-10-13 15:41:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4849 transitions. [2020-10-13 15:41:02,859 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4849 transitions. Word has length 478 [2020-10-13 15:41:02,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:41:02,859 INFO L479 AbstractCegarLoop]: Abstraction has 3768 states and 4849 transitions. [2020-10-13 15:41:02,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:41:02,859 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4849 transitions. [2020-10-13 15:41:02,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2020-10-13 15:41:02,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:41:02,878 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 7, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:41:02,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 15:41:02,878 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:41:02,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:41:02,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1908110340, now seen corresponding path program 1 times [2020-10-13 15:41:02,879 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:41:02,879 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1248229133] [2020-10-13 15:41:02,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:41:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:03,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:03,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:03,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:03,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:03,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:04,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:05,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:05,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 487 [2020-10-13 15:41:05,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 15:41:05,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2178 [2020-10-13 15:41:05,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:41:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-10-13 15:41:05,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 15:41:05,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:41:05,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:41:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:05,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:05,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:05,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:41:05,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:41:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:41:05,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:41:05,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:41:05,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:41:05,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:41:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2331 backedges. 1319 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2020-10-13 15:41:05,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1248229133] [2020-10-13 15:41:05,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:41:05,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:41:05,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098360821] [2020-10-13 15:41:05,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:41:05,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:41:05,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:41:05,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:41:05,374 INFO L87 Difference]: Start difference. First operand 3768 states and 4849 transitions. Second operand 3 states. [2020-10-13 15:41:05,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:41:05,673 INFO L93 Difference]: Finished difference Result 8086 states and 10628 transitions. [2020-10-13 15:41:05,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:41:05,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 479 [2020-10-13 15:41:05,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:41:05,684 INFO L225 Difference]: With dead ends: 8086 [2020-10-13 15:41:05,685 INFO L226 Difference]: Without dead ends: 4344 [2020-10-13 15:41:05,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:41:05,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4344 states. [2020-10-13 15:41:05,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4344 to 4312. [2020-10-13 15:41:05,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4312 states. [2020-10-13 15:41:05,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 5473 transitions. [2020-10-13 15:41:05,829 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 5473 transitions. Word has length 479 [2020-10-13 15:41:05,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:41:05,830 INFO L479 AbstractCegarLoop]: Abstraction has 4312 states and 5473 transitions. [2020-10-13 15:41:05,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:41:05,831 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 5473 transitions. [2020-10-13 15:41:05,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-10-13 15:41:05,857 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:41:05,858 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 11, 11, 8, 7, 7, 6, 6, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:41:05,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 15:41:05,858 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:41:05,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:41:05,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1255865461, now seen corresponding path program 1 times [2020-10-13 15:41:05,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:41:05,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430650606] [2020-10-13 15:41:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:41:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:06,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:06,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:06,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:06,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:06,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:06,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:07,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:07,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:08,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:08,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 518 [2020-10-13 15:41:08,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 15:41:08,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2022 [2020-10-13 15:41:08,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:08,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:41:08,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 219 [2020-10-13 15:41:08,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 15:41:08,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:41:08,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:41:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:08,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:08,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:08,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:41:08,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:41:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:41:08,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:41:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:41:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:41:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:41:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2697 backedges. 1555 proven. 0 refuted. 0 times theorem prover too weak. 1142 trivial. 0 not checked. [2020-10-13 15:41:08,411 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430650606] [2020-10-13 15:41:08,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:41:08,412 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:41:08,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243869675] [2020-10-13 15:41:08,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:41:08,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:41:08,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:41:08,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:41:08,414 INFO L87 Difference]: Start difference. First operand 4312 states and 5473 transitions. Second operand 3 states. [2020-10-13 15:41:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:41:08,766 INFO L93 Difference]: Finished difference Result 9206 states and 11940 transitions. [2020-10-13 15:41:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:41:08,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 510 [2020-10-13 15:41:08,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:41:08,777 INFO L225 Difference]: With dead ends: 9206 [2020-10-13 15:41:08,778 INFO L226 Difference]: Without dead ends: 4920 [2020-10-13 15:41:08,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:41:08,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4920 states. [2020-10-13 15:41:08,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4920 to 4888. [2020-10-13 15:41:08,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4888 states. [2020-10-13 15:41:08,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4888 states to 4888 states and 6129 transitions. [2020-10-13 15:41:08,940 INFO L78 Accepts]: Start accepts. Automaton has 4888 states and 6129 transitions. Word has length 510 [2020-10-13 15:41:08,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:41:08,941 INFO L479 AbstractCegarLoop]: Abstraction has 4888 states and 6129 transitions. [2020-10-13 15:41:08,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:41:08,941 INFO L276 IsEmpty]: Start isEmpty. Operand 4888 states and 6129 transitions. [2020-10-13 15:41:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2020-10-13 15:41:08,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:41:08,959 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 15, 14, 14, 13, 13, 12, 12, 12, 12, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:41:08,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 15:41:08,960 INFO L427 AbstractCegarLoop]: === Iteration 23 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:41:08,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:41:08,961 INFO L82 PathProgramCache]: Analyzing trace with hash -450861471, now seen corresponding path program 1 times [2020-10-13 15:41:08,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:41:08,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333774384] [2020-10-13 15:41:08,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:41:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:09,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:09,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:09,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:09,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:09,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:10,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:10,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:11,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:11,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 551 [2020-10-13 15:41:11,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 15:41:11,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2609 [2020-10-13 15:41:11,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 15:41:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-13 15:41:11,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 15:41:11,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:41:11,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:41:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:11,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:11,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:11,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:41:11,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:41:11,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 15:41:11,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:41:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:41:11,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:41:11,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:41:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3104 backedges. 1803 proven. 0 refuted. 0 times theorem prover too weak. 1301 trivial. 0 not checked. [2020-10-13 15:41:11,995 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333774384] [2020-10-13 15:41:11,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 15:41:11,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 15:41:12,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283066335] [2020-10-13 15:41:12,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 15:41:12,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:41:12,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 15:41:12,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:41:12,002 INFO L87 Difference]: Start difference. First operand 4888 states and 6129 transitions. Second operand 3 states. [2020-10-13 15:41:12,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:41:12,305 INFO L93 Difference]: Finished difference Result 9674 states and 12229 transitions. [2020-10-13 15:41:12,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 15:41:12,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 543 [2020-10-13 15:41:12,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:41:12,317 INFO L225 Difference]: With dead ends: 9674 [2020-10-13 15:41:12,317 INFO L226 Difference]: Without dead ends: 4812 [2020-10-13 15:41:12,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 15:41:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2020-10-13 15:41:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 3987. [2020-10-13 15:41:12,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3987 states. [2020-10-13 15:41:12,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3987 states to 3987 states and 4873 transitions. [2020-10-13 15:41:12,453 INFO L78 Accepts]: Start accepts. Automaton has 3987 states and 4873 transitions. Word has length 543 [2020-10-13 15:41:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:41:12,454 INFO L479 AbstractCegarLoop]: Abstraction has 3987 states and 4873 transitions. [2020-10-13 15:41:12,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 15:41:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3987 states and 4873 transitions. [2020-10-13 15:41:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2020-10-13 15:41:12,475 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 15:41:12,476 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 15:41:12,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 15:41:12,476 INFO L427 AbstractCegarLoop]: === Iteration 24 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 15:41:12,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 15:41:12,477 INFO L82 PathProgramCache]: Analyzing trace with hash -499312684, now seen corresponding path program 1 times [2020-10-13 15:41:12,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 15:41:12,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1641696193] [2020-10-13 15:41:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 15:41:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:12,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:12,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:12,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:12,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:12,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:13,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:13,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:14,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:14,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 591 [2020-10-13 15:41:14,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 15:41:14,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1634 [2020-10-13 15:41:14,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 15:41:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 373 [2020-10-13 15:41:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 15:41:14,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 15:41:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 15:41:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 15:41:14,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 15:41:14,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 15:41:14,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 15:41:14,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 15:41:14,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 15:41:14,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 15:41:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 15:41:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 15:41:14,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 15:41:14,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 15:41:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3563 backedges. 1998 proven. 26 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2020-10-13 15:41:14,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1641696193] [2020-10-13 15:41:14,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 15:41:14,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-10-13 15:41:14,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647475621] [2020-10-13 15:41:14,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 15:41:14,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 15:41:14,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 15:41:14,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 15:41:14,477 INFO L87 Difference]: Start difference. First operand 3987 states and 4873 transitions. Second operand 4 states. [2020-10-13 15:41:14,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 15:41:14,696 INFO L93 Difference]: Finished difference Result 5098 states and 6231 transitions. [2020-10-13 15:41:14,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-13 15:41:14,697 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 583 [2020-10-13 15:41:14,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 15:41:14,698 INFO L225 Difference]: With dead ends: 5098 [2020-10-13 15:41:14,698 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 15:41:14,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 15:41:14,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 15:41:14,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 15:41:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 15:41:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 15:41:14,707 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 583 [2020-10-13 15:41:14,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 15:41:14,707 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 15:41:14,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 15:41:14,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 15:41:14,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 15:41:14,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 15:41:14,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 15:41:15,264 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 102 [2020-10-13 15:41:15,662 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 107 [2020-10-13 15:41:15,980 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 25 [2020-10-13 15:41:16,506 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2020-10-13 15:41:16,815 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 18 [2020-10-13 15:41:17,139 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 17 [2020-10-13 15:41:17,635 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 75 [2020-10-13 15:41:17,718 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-10-13 15:41:17,719 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 15:41:17,719 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 15:41:17,719 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-13 15:41:17,719 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 15:41:17,719 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 15:41:17,719 INFO L264 CegarLoopResult]: At program point L641(line 641) the Hoare annotation is: (and (<= 8464 main_~s~0) (<= main_~s~0 8464)) [2020-10-13 15:41:17,719 INFO L268 CegarLoopResult]: For program point L641-1(line 641) no Hoare annotation was computed. [2020-10-13 15:41:17,719 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 634 645) the Hoare annotation is: true [2020-10-13 15:41:17,719 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 634 645) no Hoare annotation was computed. [2020-10-13 15:41:17,720 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 634 645) no Hoare annotation was computed. [2020-10-13 15:41:17,720 INFO L268 CegarLoopResult]: For program point L498(lines 498 501) no Hoare annotation was computed. [2020-10-13 15:41:17,720 INFO L268 CegarLoopResult]: For program point L465(lines 465 467) no Hoare annotation was computed. [2020-10-13 15:41:17,720 INFO L268 CegarLoopResult]: For program point L399(lines 399 401) no Hoare annotation was computed. [2020-10-13 15:41:17,720 INFO L268 CegarLoopResult]: For program point L333(lines 333 363) no Hoare annotation was computed. [2020-10-13 15:41:17,720 INFO L264 CegarLoopResult]: At program point L201(lines 197 569) the Hoare annotation is: (let ((.cse0 (<= 8656 ssl3_accept_~s__state~0)) (.cse1 (not (= ssl3_accept_~s__hit~0 0)))) (or (and .cse0 .cse1 (= 2 ssl3_accept_~blastFlag~0)) (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 (= 3 ssl3_accept_~blastFlag~0)) (and .cse0 .cse1 (= ssl3_accept_~blastFlag~0 4)))) [2020-10-13 15:41:17,720 INFO L264 CegarLoopResult]: At program point L102(lines 101 601) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (<= 8656 ssl3_accept_~s__state~0)) [2020-10-13 15:41:17,721 INFO L264 CegarLoopResult]: At program point L565(lines 98 620) the Hoare annotation is: (let ((.cse2 (= 8496 ssl3_accept_~s__state~0)) (.cse4 (= ssl3_accept_~blastFlag~0 4)) (.cse3 (not (= ssl3_accept_~s__hit~0 0))) (.cse0 (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse5 (= 8448 ssl3_accept_~s__state~0)) (.cse1 (= 2 ssl3_accept_~blastFlag~0))) (or (and (= ssl3_accept_~s__state~0 8640) .cse0 .cse1) (and (= ssl3_accept_~s__state~0 8608) .cse0 .cse1) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and (= ssl3_accept_~blastFlag~0 1) .cse2) (and (= ssl3_accept_~s__state~0 8512) .cse1) (and .cse1 .cse2) (and (= 8560 ssl3_accept_~s__state~0) .cse1) (and (= ssl3_accept_~s__state~0 8656) .cse1) (and (= 8576 ssl3_accept_~s__state~0) .cse0 .cse1) (and (= ssl3_accept_~s__state~0 8592) .cse0 .cse1) (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and .cse3 .cse4) (and .cse5 .cse4 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)) (<= ssl3_accept_~s__state~0 3) (and (<= 8656 ssl3_accept_~s__state~0) (= 3 ssl3_accept_~blastFlag~0)) (and .cse3 .cse1) (and (= 8466 ssl3_accept_~s__state~0) .cse1) (and .cse0 .cse1 .cse5) (and (= ssl3_accept_~s__state~0 8528) (= ssl3_accept_~__cil_tmp56~0 ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0) .cse1) (and .cse1 (= ssl3_accept_~s__state~0 8544)))) [2020-10-13 15:41:17,721 INFO L268 CegarLoopResult]: For program point L533(lines 533 535) no Hoare annotation was computed. [2020-10-13 15:41:17,721 INFO L268 CegarLoopResult]: For program point L533-2(lines 207 564) no Hoare annotation was computed. [2020-10-13 15:41:17,722 INFO L268 CegarLoopResult]: For program point L203(lines 203 567) no Hoare annotation was computed. [2020-10-13 15:41:17,722 INFO L268 CegarLoopResult]: For program point L170(lines 170 578) no Hoare annotation was computed. [2020-10-13 15:41:17,722 INFO L268 CegarLoopResult]: For program point L137(lines 137 589) no Hoare annotation was computed. [2020-10-13 15:41:17,722 INFO L268 CegarLoopResult]: For program point L104(lines 104 600) no Hoare annotation was computed. [2020-10-13 15:41:17,722 INFO L268 CegarLoopResult]: For program point L303(lines 303 310) no Hoare annotation was computed. [2020-10-13 15:41:17,722 INFO L268 CegarLoopResult]: For program point L303-2(lines 303 310) no Hoare annotation was computed. [2020-10-13 15:41:17,723 INFO L271 CegarLoopResult]: At program point L204(lines 203 567) the Hoare annotation is: true [2020-10-13 15:41:17,723 INFO L264 CegarLoopResult]: At program point L171(lines 167 579) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (= 2 ssl3_accept_~blastFlag~0))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 (= ssl3_accept_~blastFlag~0 4)) (and .cse0 .cse1) (and (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1))) [2020-10-13 15:41:17,723 INFO L264 CegarLoopResult]: At program point L138(lines 134 590) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (= ssl3_accept_~blastFlag~0 1) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,723 INFO L268 CegarLoopResult]: For program point L602(lines 602 618) no Hoare annotation was computed. [2020-10-13 15:41:17,723 INFO L268 CegarLoopResult]: For program point L503(lines 503 513) no Hoare annotation was computed. [2020-10-13 15:41:17,724 INFO L268 CegarLoopResult]: For program point L338(lines 338 361) no Hoare annotation was computed. [2020-10-13 15:41:17,724 INFO L271 CegarLoopResult]: At program point L206(lines 205 567) the Hoare annotation is: true [2020-10-13 15:41:17,724 INFO L268 CegarLoopResult]: For program point L173(lines 173 577) no Hoare annotation was computed. [2020-10-13 15:41:17,724 INFO L268 CegarLoopResult]: For program point L140(lines 140 588) no Hoare annotation was computed. [2020-10-13 15:41:17,724 INFO L268 CegarLoopResult]: For program point L107(lines 107 599) no Hoare annotation was computed. [2020-10-13 15:41:17,724 INFO L268 CegarLoopResult]: For program point L603(lines 603 617) no Hoare annotation was computed. [2020-10-13 15:41:17,724 INFO L268 CegarLoopResult]: For program point L273(lines 273 275) no Hoare annotation was computed. [2020-10-13 15:41:17,724 INFO L268 CegarLoopResult]: For program point L273-2(lines 207 564) no Hoare annotation was computed. [2020-10-13 15:41:17,724 INFO L268 CegarLoopResult]: For program point L604(lines 604 609) no Hoare annotation was computed. [2020-10-13 15:41:17,725 INFO L268 CegarLoopResult]: For program point L604-2(lines 603 617) no Hoare annotation was computed. [2020-10-13 15:41:17,725 INFO L268 CegarLoopResult]: For program point L439(lines 439 441) no Hoare annotation was computed. [2020-10-13 15:41:17,725 INFO L268 CegarLoopResult]: For program point L307(lines 307 309) no Hoare annotation was computed. [2020-10-13 15:41:17,725 INFO L271 CegarLoopResult]: At program point ssl3_acceptENTRY(lines 10 633) the Hoare annotation is: true [2020-10-13 15:41:17,725 INFO L268 CegarLoopResult]: For program point L506(lines 506 512) no Hoare annotation was computed. [2020-10-13 15:41:17,725 INFO L268 CegarLoopResult]: For program point L341(lines 341 345) no Hoare annotation was computed. [2020-10-13 15:41:17,725 INFO L268 CegarLoopResult]: For program point L341-2(lines 341 345) no Hoare annotation was computed. [2020-10-13 15:41:17,725 INFO L268 CegarLoopResult]: For program point L242(lines 242 252) no Hoare annotation was computed. [2020-10-13 15:41:17,726 INFO L268 CegarLoopResult]: For program point L176(lines 176 576) no Hoare annotation was computed. [2020-10-13 15:41:17,726 INFO L268 CegarLoopResult]: For program point L143(lines 143 587) no Hoare annotation was computed. [2020-10-13 15:41:17,726 INFO L268 CegarLoopResult]: For program point L110(lines 110 598) no Hoare annotation was computed. [2020-10-13 15:41:17,726 INFO L268 CegarLoopResult]: For program point L606(lines 606 608) no Hoare annotation was computed. [2020-10-13 15:41:17,726 INFO L268 CegarLoopResult]: For program point L474(lines 474 484) no Hoare annotation was computed. [2020-10-13 15:41:17,726 INFO L268 CegarLoopResult]: For program point L375(lines 375 407) no Hoare annotation was computed. [2020-10-13 15:41:17,726 INFO L268 CegarLoopResult]: For program point L243(lines 243 246) no Hoare annotation was computed. [2020-10-13 15:41:17,726 INFO L271 CegarLoopResult]: At program point L210(lines 104 600) the Hoare annotation is: true [2020-10-13 15:41:17,727 INFO L264 CegarLoopResult]: At program point L177(lines 173 577) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (= 2 ssl3_accept_~blastFlag~0))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 (= ssl3_accept_~blastFlag~0 4)) (and .cse0 .cse1) (and (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1))) [2020-10-13 15:41:17,727 INFO L264 CegarLoopResult]: At program point L144(lines 140 588) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,727 INFO L268 CegarLoopResult]: For program point L442(lines 442 451) no Hoare annotation was computed. [2020-10-13 15:41:17,727 INFO L268 CegarLoopResult]: For program point L376(lines 376 382) no Hoare annotation was computed. [2020-10-13 15:41:17,727 INFO L268 CegarLoopResult]: For program point L542(lines 542 546) no Hoare annotation was computed. [2020-10-13 15:41:17,727 INFO L268 CegarLoopResult]: For program point L509(lines 509 511) no Hoare annotation was computed. [2020-10-13 15:41:17,727 INFO L268 CegarLoopResult]: For program point L542-2(lines 542 546) no Hoare annotation was computed. [2020-10-13 15:41:17,727 INFO L268 CegarLoopResult]: For program point L509-2(lines 207 564) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L179(lines 179 575) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L146(lines 146 586) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L113(lines 113 597) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L477(lines 477 483) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L477-2(lines 207 564) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L81(lines 81 87) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L611(lines 611 615) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L446(lines 446 448) no Hoare annotation was computed. [2020-10-13 15:41:17,728 INFO L268 CegarLoopResult]: For program point L215(lines 215 217) no Hoare annotation was computed. [2020-10-13 15:41:17,729 INFO L268 CegarLoopResult]: For program point L182(lines 182 574) no Hoare annotation was computed. [2020-10-13 15:41:17,729 INFO L268 CegarLoopResult]: For program point L149(lines 149 585) no Hoare annotation was computed. [2020-10-13 15:41:17,729 INFO L268 CegarLoopResult]: For program point L215-2(lines 215 217) no Hoare annotation was computed. [2020-10-13 15:41:17,729 INFO L268 CegarLoopResult]: For program point L116(lines 116 596) no Hoare annotation was computed. [2020-10-13 15:41:17,729 INFO L268 CegarLoopResult]: For program point L480(lines 480 482) no Hoare annotation was computed. [2020-10-13 15:41:17,729 INFO L264 CegarLoopResult]: At program point L183(lines 179 575) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (= 2 ssl3_accept_~blastFlag~0))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 (= ssl3_accept_~blastFlag~0 4)) (and .cse0 .cse1) (and (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse1))) [2020-10-13 15:41:17,729 INFO L264 CegarLoopResult]: At program point L150(lines 146 586) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,729 INFO L268 CegarLoopResult]: For program point L84(lines 84 86) no Hoare annotation was computed. [2020-10-13 15:41:17,730 INFO L268 CegarLoopResult]: For program point L84-2(lines 81 87) no Hoare annotation was computed. [2020-10-13 15:41:17,730 INFO L264 CegarLoopResult]: At program point L481(lines 71 632) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464))) [2020-10-13 15:41:17,730 INFO L268 CegarLoopResult]: For program point L349(lines 349 357) no Hoare annotation was computed. [2020-10-13 15:41:17,730 INFO L264 CegarLoopResult]: At program point L350(lines 326 368) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,730 INFO L268 CegarLoopResult]: For program point L185(lines 185 573) no Hoare annotation was computed. [2020-10-13 15:41:17,730 INFO L268 CegarLoopResult]: For program point L152(lines 152 584) no Hoare annotation was computed. [2020-10-13 15:41:17,730 INFO L268 CegarLoopResult]: For program point L119(lines 119 595) no Hoare annotation was computed. [2020-10-13 15:41:17,731 INFO L268 CegarLoopResult]: For program point L417(lines 417 419) no Hoare annotation was computed. [2020-10-13 15:41:17,731 INFO L264 CegarLoopResult]: At program point L384(lines 375 407) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,731 INFO L264 CegarLoopResult]: At program point L120(lines 116 596) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0)))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 (= ssl3_accept_~blastFlag~0 4)) (and .cse0 (= 2 ssl3_accept_~blastFlag~0)))) [2020-10-13 15:41:17,731 INFO L268 CegarLoopResult]: For program point L352(lines 352 354) no Hoare annotation was computed. [2020-10-13 15:41:17,731 INFO L268 CegarLoopResult]: For program point L286(lines 286 288) no Hoare annotation was computed. [2020-10-13 15:41:17,731 INFO L268 CegarLoopResult]: For program point L220(lines 220 222) no Hoare annotation was computed. [2020-10-13 15:41:17,731 INFO L268 CegarLoopResult]: For program point L286-2(lines 207 564) no Hoare annotation was computed. [2020-10-13 15:41:17,731 INFO L268 CegarLoopResult]: For program point L320(lines 320 324) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L320-2(lines 207 564) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L188(lines 188 572) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L155(lines 155 583) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L122(lines 122 594) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L89-1(lines 71 632) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L552(lines 552 558) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point ssl3_acceptEXIT(lines 10 633) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L519(lines 519 522) no Hoare annotation was computed. [2020-10-13 15:41:17,732 INFO L268 CegarLoopResult]: For program point L552-1(lines 552 558) no Hoare annotation was computed. [2020-10-13 15:41:17,733 INFO L268 CegarLoopResult]: For program point L387(lines 387 405) no Hoare annotation was computed. [2020-10-13 15:41:17,733 INFO L264 CegarLoopResult]: At program point L189(lines 185 573) the Hoare annotation is: (let ((.cse0 (not (= ssl3_accept_~s__hit~0 0))) (.cse1 (= 2 ssl3_accept_~blastFlag~0))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 (= ssl3_accept_~blastFlag~0 4)) (and .cse0 .cse1) (and (= ssl3_accept_~s__state~0 8640) .cse1))) [2020-10-13 15:41:17,733 INFO L264 CegarLoopResult]: At program point L156(lines 152 584) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,733 INFO L271 CegarLoopResult]: At program point L123(lines 122 594) the Hoare annotation is: true [2020-10-13 15:41:17,733 INFO L268 CegarLoopResult]: For program point L90(lines 90 92) no Hoare annotation was computed. [2020-10-13 15:41:17,733 INFO L268 CegarLoopResult]: For program point L388(lines 388 394) no Hoare annotation was computed. [2020-10-13 15:41:17,733 INFO L268 CegarLoopResult]: For program point L488(lines 488 492) no Hoare annotation was computed. [2020-10-13 15:41:17,733 INFO L268 CegarLoopResult]: For program point L488-2(lines 488 492) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point L191(lines 191 571) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point L158(lines 158 582) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point L125(lines 125 593) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L271 CegarLoopResult]: At program point L621(lines 97 622) the Hoare annotation is: true [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point ssl3_acceptFINAL(lines 10 633) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point L555(lines 555 557) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point L456(lines 456 458) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point L258(lines 258 260) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point L225(lines 225 236) no Hoare annotation was computed. [2020-10-13 15:41:17,734 INFO L268 CegarLoopResult]: For program point L225-2(lines 207 564) no Hoare annotation was computed. [2020-10-13 15:41:17,735 INFO L268 CegarLoopResult]: For program point L292(lines 292 296) no Hoare annotation was computed. [2020-10-13 15:41:17,735 INFO L268 CegarLoopResult]: For program point L292-2(lines 292 296) no Hoare annotation was computed. [2020-10-13 15:41:17,735 INFO L268 CegarLoopResult]: For program point L425-1(lines 425 433) no Hoare annotation was computed. [2020-10-13 15:41:17,735 INFO L268 CegarLoopResult]: For program point L227(lines 227 230) no Hoare annotation was computed. [2020-10-13 15:41:17,735 INFO L268 CegarLoopResult]: For program point L194(lines 194 570) no Hoare annotation was computed. [2020-10-13 15:41:17,735 INFO L268 CegarLoopResult]: For program point L161(lines 161 581) no Hoare annotation was computed. [2020-10-13 15:41:17,735 INFO L268 CegarLoopResult]: For program point L128(lines 128 592) no Hoare annotation was computed. [2020-10-13 15:41:17,735 INFO L264 CegarLoopResult]: At program point L195(lines 191 571) the Hoare annotation is: (let ((.cse2 (<= 8656 ssl3_accept_~s__state~0)) (.cse1 (<= |ssl3_accept_#in~initial_state| 8464)) (.cse0 (<= 8464 |ssl3_accept_#in~initial_state|))) (or (not .cse0) (not .cse1) (and .cse2 .cse1 .cse0 (= 2 ssl3_accept_~blastFlag~0)) (and .cse2 .cse1 (not (= ssl3_accept_~s__hit~0 0)) .cse0 (= ssl3_accept_~blastFlag~0 4)) (and .cse2 .cse1 .cse0 (= 3 ssl3_accept_~blastFlag~0)))) [2020-10-13 15:41:17,736 INFO L264 CegarLoopResult]: At program point L162(lines 158 582) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,736 INFO L268 CegarLoopResult]: For program point L626(lines 626 628) no Hoare annotation was computed. [2020-10-13 15:41:17,736 INFO L268 CegarLoopResult]: For program point L626-2(lines 626 628) no Hoare annotation was computed. [2020-10-13 15:41:17,736 INFO L268 CegarLoopResult]: For program point L527(lines 527 537) no Hoare annotation was computed. [2020-10-13 15:41:17,736 INFO L268 CegarLoopResult]: For program point L428(lines 428 431) no Hoare annotation was computed. [2020-10-13 15:41:17,736 INFO L268 CegarLoopResult]: For program point L329(lines 329 367) no Hoare annotation was computed. [2020-10-13 15:41:17,736 INFO L268 CegarLoopResult]: For program point L197(lines 197 569) no Hoare annotation was computed. [2020-10-13 15:41:17,736 INFO L268 CegarLoopResult]: For program point L164(lines 164 580) no Hoare annotation was computed. [2020-10-13 15:41:17,736 INFO L268 CegarLoopResult]: For program point L131(lines 131 591) no Hoare annotation was computed. [2020-10-13 15:41:17,737 INFO L268 CegarLoopResult]: For program point ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2020-10-13 15:41:17,737 INFO L264 CegarLoopResult]: At program point L98-2(lines 98 620) the Hoare annotation is: (let ((.cse2 (= 8496 ssl3_accept_~s__state~0)) (.cse4 (= ssl3_accept_~blastFlag~0 4)) (.cse3 (not (= ssl3_accept_~s__hit~0 0))) (.cse0 (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0)) (.cse5 (= 8448 ssl3_accept_~s__state~0)) (.cse1 (= 2 ssl3_accept_~blastFlag~0))) (or (and (= ssl3_accept_~s__state~0 8640) .cse0 .cse1) (and (= ssl3_accept_~s__state~0 8608) .cse0 .cse1) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and (= ssl3_accept_~blastFlag~0 1) .cse2) (and (= ssl3_accept_~s__state~0 8512) .cse1) (and .cse1 .cse2) (and (= 8560 ssl3_accept_~s__state~0) .cse1) (and (= ssl3_accept_~blastFlag~0 0) (<= ssl3_accept_~s__state~0 8464) (< 8463 ssl3_accept_~s__state~0)) (and (= ssl3_accept_~s__state~0 8656) .cse1) (and (= 8576 ssl3_accept_~s__state~0) .cse0 .cse1) (and (= ssl3_accept_~s__state~0 8592) .cse0 .cse1) (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and .cse3 .cse4) (and .cse5 .cse4 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)) (<= ssl3_accept_~s__state~0 3) (and (<= 8656 ssl3_accept_~s__state~0) (= 3 ssl3_accept_~blastFlag~0)) (and .cse3 .cse1) (and (= 8466 ssl3_accept_~s__state~0) .cse1) (and .cse0 .cse1 .cse5) (and (= ssl3_accept_~s__state~0 8528) (= ssl3_accept_~__cil_tmp56~0 ssl3_accept_~s__s3__tmp__new_cipher__algorithms~0) .cse1) (and .cse1 (= ssl3_accept_~s__state~0 8544)))) [2020-10-13 15:41:17,737 INFO L264 CegarLoopResult]: At program point L396(lines 387 405) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,737 INFO L268 CegarLoopResult]: For program point L231(lines 231 234) no Hoare annotation was computed. [2020-10-13 15:41:17,737 INFO L264 CegarLoopResult]: At program point L165(lines 164 580) the Hoare annotation is: (let ((.cse1 (= ssl3_accept_~blastFlag~0 4)) (.cse2 (not (= ssl3_accept_~s__hit~0 0))) (.cse3 (= 2 ssl3_accept_~blastFlag~0)) (.cse0 (= 8448 ssl3_accept_~s__state~0))) (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (and .cse0 .cse1 (<= ssl3_accept_~s__s3__tmp__next_state___0~0 3)) (and .cse2 .cse0 .cse1) (and (= 8576 ssl3_accept_~s__s3__tmp__next_state___0~0) .cse3 .cse0) (and .cse2 .cse3 .cse0))) [2020-10-13 15:41:17,737 INFO L264 CegarLoopResult]: At program point L132(lines 125 593) the Hoare annotation is: (or (not (<= 8464 |ssl3_accept_#in~initial_state|)) (and (not (= ssl3_accept_~s__hit~0 0)) (= ssl3_accept_~blastFlag~0 4)) (not (<= |ssl3_accept_#in~initial_state| 8464)) (= ssl3_accept_~blastFlag~0 0) (= 2 ssl3_accept_~blastFlag~0)) [2020-10-13 15:41:17,738 INFO L268 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-13 15:41:17,738 INFO L268 CegarLoopResult]: For program point L530(lines 530 536) no Hoare annotation was computed. [2020-10-13 15:41:17,738 INFO L268 CegarLoopResult]: For program point L332(lines 332 366) no Hoare annotation was computed. [2020-10-13 15:41:17,738 INFO L268 CegarLoopResult]: For program point L332-1(lines 332 366) no Hoare annotation was computed. [2020-10-13 15:41:17,738 INFO L268 CegarLoopResult]: For program point L200(lines 200 568) no Hoare annotation was computed. [2020-10-13 15:41:17,738 INFO L268 CegarLoopResult]: For program point L167(lines 167 579) no Hoare annotation was computed. [2020-10-13 15:41:17,738 INFO L268 CegarLoopResult]: For program point L134(lines 134 590) no Hoare annotation was computed. [2020-10-13 15:41:17,738 INFO L268 CegarLoopResult]: For program point L101(lines 101 601) no Hoare annotation was computed. [2020-10-13 15:41:17,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 03:41:17 BoogieIcfgContainer [2020-10-13 15:41:17,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 15:41:17,769 INFO L168 Benchmark]: Toolchain (without parser) took 34174.25 ms. Allocated memory was 148.4 MB in the beginning and 1.0 GB in the end (delta: 886.0 MB). Free memory was 102.3 MB in the beginning and 491.2 MB in the end (delta: -388.9 MB). Peak memory consumption was 810.3 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:17,770 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 15:41:17,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 670.25 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 102.1 MB in the beginning and 179.3 MB in the end (delta: -77.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:17,771 INFO L168 Benchmark]: Boogie Preprocessor took 111.32 ms. Allocated memory is still 204.5 MB. Free memory was 179.3 MB in the beginning and 176.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:17,771 INFO L168 Benchmark]: RCFGBuilder took 821.73 ms. Allocated memory is still 204.5 MB. Free memory was 176.8 MB in the beginning and 124.3 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:17,772 INFO L168 Benchmark]: TraceAbstraction took 32563.57 ms. Allocated memory was 204.5 MB in the beginning and 1.0 GB in the end (delta: 829.9 MB). Free memory was 124.3 MB in the beginning and 491.2 MB in the end (delta: -366.9 MB). Peak memory consumption was 776.2 MB. Max. memory is 7.1 GB. [2020-10-13 15:41:17,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 670.25 ms. Allocated memory was 148.4 MB in the beginning and 204.5 MB in the end (delta: 56.1 MB). Free memory was 102.1 MB in the beginning and 179.3 MB in the end (delta: -77.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.32 ms. Allocated memory is still 204.5 MB. Free memory was 179.3 MB in the beginning and 176.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 821.73 ms. Allocated memory is still 204.5 MB. Free memory was 176.8 MB in the beginning and 124.3 MB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32563.57 ms. Allocated memory was 204.5 MB in the beginning and 1.0 GB in the end (delta: 829.9 MB). Free memory was 124.3 MB in the beginning and 491.2 MB in the end (delta: -366.9 MB). Peak memory consumption was 776.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: 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: 387]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || (!(s__hit == 0) && blastFlag == 4)) || !(\old(initial_state) <= 8464)) || 2 == blastFlag - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || (!(s__hit == 0) && blastFlag == 4)) || !(\old(initial_state) <= 8464)) || 2 == blastFlag - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || (!(s__hit == 0) && 2 == blastFlag) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (((8656 <= s__state && \old(initial_state) <= 8464) && 8464 <= \old(initial_state)) && 2 == blastFlag)) || ((((8656 <= s__state && \old(initial_state) <= 8464) && !(s__hit == 0)) && 8464 <= \old(initial_state)) && blastFlag == 4)) || (((8656 <= s__state && \old(initial_state) <= 8464) && 8464 <= \old(initial_state)) && 3 == blastFlag) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || 2 == blastFlag - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || 8656 <= s__state - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || (!(s__hit == 0) && 2 == blastFlag)) || (8576 == s__s3__tmp__next_state___0 && 2 == blastFlag) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: (((((8656 <= s__state && !(s__hit == 0)) && 2 == blastFlag) || !(8464 <= \old(initial_state))) || !(\old(initial_state) <= 8464)) || (8656 <= s__state && 3 == blastFlag)) || ((8656 <= s__state && !(s__hit == 0)) && blastFlag == 4) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: ((((((((((((((((((((s__state == 8640 && 8576 == s__s3__tmp__next_state___0) && 2 == blastFlag) || ((s__state == 8608 && 8576 == s__s3__tmp__next_state___0) && 2 == blastFlag)) || !(\old(initial_state) <= 8464)) || (blastFlag == 1 && 8496 == s__state)) || (s__state == 8512 && 2 == blastFlag)) || (2 == blastFlag && 8496 == s__state)) || (8560 == s__state && 2 == blastFlag)) || (s__state == 8656 && 2 == blastFlag)) || ((8576 == s__state && 8576 == s__s3__tmp__next_state___0) && 2 == blastFlag)) || ((s__state == 8592 && 8576 == s__s3__tmp__next_state___0) && 2 == blastFlag)) || !(8464 <= \old(initial_state))) || (!(s__hit == 0) && blastFlag == 4)) || ((8448 == s__state && blastFlag == 4) && s__s3__tmp__next_state___0 <= 3)) || s__state <= 3) || (8656 <= s__state && 3 == blastFlag)) || (!(s__hit == 0) && 2 == blastFlag)) || (8466 == s__state && 2 == blastFlag)) || ((8576 == s__s3__tmp__next_state___0 && 2 == blastFlag) && 8448 == s__state)) || ((s__state == 8528 && __cil_tmp56 == s__s3__tmp__new_cipher__algorithms) && 2 == blastFlag)) || (2 == blastFlag && s__state == 8544) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || (!(s__hit == 0) && blastFlag == 4)) || !(\old(initial_state) <= 8464)) || 2 == blastFlag - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || 2 == blastFlag - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: !(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || (!(s__hit == 0) && 2 == blastFlag)) || (8576 == s__s3__tmp__next_state___0 && 2 == blastFlag) - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || (!(s__hit == 0) && blastFlag == 4)) || !(\old(initial_state) <= 8464)) || blastFlag == 0) || 2 == blastFlag - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || ((8448 == s__state && blastFlag == 4) && s__s3__tmp__next_state___0 <= 3)) || ((!(s__hit == 0) && 8448 == s__state) && blastFlag == 4)) || ((8576 == s__s3__tmp__next_state___0 && 2 == blastFlag) && 8448 == s__state)) || ((!(s__hit == 0) && 2 == blastFlag) && 8448 == s__state) - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || (!(s__hit == 0) && blastFlag == 4)) || !(\old(initial_state) <= 8464)) || 2 == blastFlag - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || (!(s__hit == 0) && 2 == blastFlag)) || (s__state == 8640 && 2 == blastFlag) - InvariantResult [Line: 326]: Loop Invariant Derived loop invariant: ((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || 2 == blastFlag - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || blastFlag == 1) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || 2 == blastFlag - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: (((((((((((((((((((((s__state == 8640 && 8576 == s__s3__tmp__next_state___0) && 2 == blastFlag) || ((s__state == 8608 && 8576 == s__s3__tmp__next_state___0) && 2 == blastFlag)) || !(\old(initial_state) <= 8464)) || (blastFlag == 1 && 8496 == s__state)) || (s__state == 8512 && 2 == blastFlag)) || (2 == blastFlag && 8496 == s__state)) || (8560 == s__state && 2 == blastFlag)) || ((blastFlag == 0 && s__state <= 8464) && 8463 < s__state)) || (s__state == 8656 && 2 == blastFlag)) || ((8576 == s__state && 8576 == s__s3__tmp__next_state___0) && 2 == blastFlag)) || ((s__state == 8592 && 8576 == s__s3__tmp__next_state___0) && 2 == blastFlag)) || !(8464 <= \old(initial_state))) || (!(s__hit == 0) && blastFlag == 4)) || ((8448 == s__state && blastFlag == 4) && s__s3__tmp__next_state___0 <= 3)) || s__state <= 3) || (8656 <= s__state && 3 == blastFlag)) || (!(s__hit == 0) && 2 == blastFlag)) || (8466 == s__state && 2 == blastFlag)) || ((8576 == s__s3__tmp__next_state___0 && 2 == blastFlag) && 8448 == s__state)) || ((s__state == 8528 && __cil_tmp56 == s__s3__tmp__new_cipher__algorithms) && 2 == blastFlag)) || (2 == blastFlag && s__state == 8544) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((!(8464 <= \old(initial_state)) || !(\old(initial_state) <= 8464)) || (!(s__hit == 0) && blastFlag == 4)) || (!(s__hit == 0) && 2 == blastFlag)) || (8576 == s__s3__tmp__next_state___0 && 2 == blastFlag) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 155 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.4s, OverallIterations: 24, TraceHistogramMax: 18, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5516 SDtfs, 2247 SDslu, 4854 SDs, 0 SdLazy, 2081 SolverSat, 323 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4888occurred in iteration=22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 24 MinimizatonAttempts, 3057 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 32 PreInvPairs, 357 NumberOfFragments, 836 HoareAnnotationTreeSize, 32 FomulaSimplifications, 31341 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 32 FomulaSimplificationsInter, 6644 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 5566 NumberOfCodeBlocks, 5566 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 5542 ConstructedInterpolants, 0 QuantifiedInterpolants, 2403610 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 22 PerfectInterpolantSequences, 18579/18631 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...