/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 SingleStatement --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:21:57,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:21:57,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:21:57,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:21:57,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:21:57,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:21:57,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:21:57,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:21:57,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:21:57,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:21:57,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:21:57,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:21:57,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:21:57,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:21:57,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:21:57,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:21:57,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:21:57,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:21:57,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:21:57,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:21:57,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:21:57,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:21:57,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:21:57,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:21:57,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:21:57,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:21:57,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:21:57,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:21:57,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:21:57,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:21:57,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:21:57,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:21:57,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:21:57,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:21:57,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:21:57,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:21:57,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:21:57,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:21:57,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:21:57,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:21:57,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:21:57,185 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 [2020-09-25 04:21:57,212 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:21:57,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:21:57,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:21:57,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:21:57,214 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:21:57,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:21:57,215 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:21:57,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:21:57,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:21:57,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:21:57,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:21:57,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:21:57,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:21:57,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:21:57,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:21:57,217 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:21:57,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:21:57,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:21:57,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:21:57,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:21:57,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:21:57,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:57,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:21:57,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:21:57,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:21:57,219 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:21:57,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:21:57,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:21:57,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:21:57,219 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 -> SingleStatement 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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:21:57,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:21:57,718 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:21:57,726 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:21:57,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:21:57,731 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:21:57,732 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 04:21:57,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54d7bec39/31c57009eeb24c06a939232bdbc29ebe/FLAGbe830ed0b [2020-09-25 04:21:58,376 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:21:58,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_13.cil.c [2020-09-25 04:21:58,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54d7bec39/31c57009eeb24c06a939232bdbc29ebe/FLAGbe830ed0b [2020-09-25 04:21:58,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/54d7bec39/31c57009eeb24c06a939232bdbc29ebe [2020-09-25 04:21:58,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:21:58,678 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:21:58,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:58,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:21:58,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:21:58,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:58" (1/1) ... [2020-09-25 04:21:58,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@377d8449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:58, skipping insertion in model container [2020-09-25 04:21:58,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:58" (1/1) ... [2020-09-25 04:21:58,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:21:58,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:21:59,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:59,065 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:21:59,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:59,280 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:21:59,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59 WrapperNode [2020-09-25 04:21:59,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:59,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:21:59,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:21:59,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:21:59,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (1/1) ... [2020-09-25 04:21:59,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (1/1) ... [2020-09-25 04:21:59,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (1/1) ... [2020-09-25 04:21:59,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (1/1) ... [2020-09-25 04:21:59,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (1/1) ... [2020-09-25 04:21:59,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (1/1) ... [2020-09-25 04:21:59,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (1/1) ... [2020-09-25 04:21:59,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:21:59,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:21:59,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:21:59,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:21:59,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (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 [2020-09-25 04:21:59,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:21:59,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:21:59,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 04:21:59,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:21:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:21:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:21:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:21:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 04:21:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 04:21:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:21:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:21:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:21:59,683 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:22:00,379 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 04:22:00,379 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 04:22:00,397 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:22:00,398 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:22:00,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:00 BoogieIcfgContainer [2020-09-25 04:22:00,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:22:00,409 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:22:00,409 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:22:00,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:22:00,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:21:58" (1/3) ... [2020-09-25 04:22:00,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b428d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:00, skipping insertion in model container [2020-09-25 04:22:00,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:59" (2/3) ... [2020-09-25 04:22:00,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b428d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:22:00, skipping insertion in model container [2020-09-25 04:22:00,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:22:00" (3/3) ... [2020-09-25 04:22:00,417 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_13.cil.c [2020-09-25 04:22:00,429 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:22:00,441 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:22:00,465 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:22:00,498 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:22:00,499 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:22:00,499 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:22:00,499 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:22:00,499 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:22:00,499 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:22:00,499 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:22:00,499 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:22:00,531 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states. [2020-09-25 04:22:00,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 04:22:00,551 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:00,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:00,553 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:00,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1103530067, now seen corresponding path program 1 times [2020-09-25 04:22:00,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:00,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [359574413] [2020-09-25 04:22:00,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:00,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:01,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:01,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:02,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 04:22:02,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:02,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1514 [2020-09-25 04:22:02,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:02,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 156 [2020-09-25 04:22:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:02,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:22:02,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:02,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:02,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:02,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:02,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:02,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:02,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:02,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:02,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:02,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:02,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:02,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [359574413] [2020-09-25 04:22:02,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:02,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:02,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121527426] [2020-09-25 04:22:02,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:02,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:02,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:02,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:02,558 INFO L87 Difference]: Start difference. First operand 440 states. Second operand 3 states. [2020-09-25 04:22:02,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:02,929 INFO L93 Difference]: Finished difference Result 801 states and 1062 transitions. [2020-09-25 04:22:02,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:02,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-25 04:22:02,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:02,955 INFO L225 Difference]: With dead ends: 801 [2020-09-25 04:22:02,955 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 04:22:02,963 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 [2020-09-25 04:22:02,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 04:22:03,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 419. [2020-09-25 04:22:03,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2020-09-25 04:22:03,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 500 transitions. [2020-09-25 04:22:03,065 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 500 transitions. Word has length 160 [2020-09-25 04:22:03,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:03,069 INFO L479 AbstractCegarLoop]: Abstraction has 419 states and 500 transitions. [2020-09-25 04:22:03,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 500 transitions. [2020-09-25 04:22:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 04:22:03,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:03,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:03,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:22:03,083 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:03,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:03,084 INFO L82 PathProgramCache]: Analyzing trace with hash 732761503, now seen corresponding path program 1 times [2020-09-25 04:22:03,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:03,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773465740] [2020-09-25 04:22:03,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:03,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:04,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:22:04,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1067 [2020-09-25 04:22:04,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:04,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 04:22:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:04,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:04,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:04,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:04,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:04,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:04,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:04,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:04,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:04,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:04,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:04,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:04,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:04,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773465740] [2020-09-25 04:22:04,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:04,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:04,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156967794] [2020-09-25 04:22:04,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:04,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:04,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:04,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:04,293 INFO L87 Difference]: Start difference. First operand 419 states and 500 transitions. Second operand 3 states. [2020-09-25 04:22:04,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:04,560 INFO L93 Difference]: Finished difference Result 768 states and 969 transitions. [2020-09-25 04:22:04,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:04,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 04:22:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:04,566 INFO L225 Difference]: With dead ends: 768 [2020-09-25 04:22:04,566 INFO L226 Difference]: Without dead ends: 477 [2020-09-25 04:22:04,569 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 [2020-09-25 04:22:04,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-09-25 04:22:04,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 473. [2020-09-25 04:22:04,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-09-25 04:22:04,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 564 transitions. [2020-09-25 04:22:04,592 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 564 transitions. Word has length 165 [2020-09-25 04:22:04,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:04,593 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 564 transitions. [2020-09-25 04:22:04,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:04,594 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 564 transitions. [2020-09-25 04:22:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 04:22:04,597 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:04,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:04,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:22:04,597 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:04,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:04,598 INFO L82 PathProgramCache]: Analyzing trace with hash -296204506, now seen corresponding path program 1 times [2020-09-25 04:22:04,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:04,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [317526284] [2020-09-25 04:22:04,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:04,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:04,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:06,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 04:22:06,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 04:22:06,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1907 [2020-09-25 04:22:06,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:06,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:06,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 04:22:06,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:06,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:06,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:06,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:06,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:06,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:06,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:06,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:06,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:06,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:06,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:06,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [317526284] [2020-09-25 04:22:06,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:06,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:06,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218874060] [2020-09-25 04:22:06,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:06,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:06,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:06,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:06,595 INFO L87 Difference]: Start difference. First operand 473 states and 564 transitions. Second operand 3 states. [2020-09-25 04:22:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:06,837 INFO L93 Difference]: Finished difference Result 868 states and 1086 transitions. [2020-09-25 04:22:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:06,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 166 [2020-09-25 04:22:06,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:06,841 INFO L225 Difference]: With dead ends: 868 [2020-09-25 04:22:06,842 INFO L226 Difference]: Without dead ends: 523 [2020-09-25 04:22:06,843 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 [2020-09-25 04:22:06,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-09-25 04:22:06,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 501. [2020-09-25 04:22:06,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 04:22:06,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 604 transitions. [2020-09-25 04:22:06,860 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 604 transitions. Word has length 166 [2020-09-25 04:22:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:06,860 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 604 transitions. [2020-09-25 04:22:06,860 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 604 transitions. [2020-09-25 04:22:06,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 04:22:06,863 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:06,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:06,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:22:06,864 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:06,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:06,865 INFO L82 PathProgramCache]: Analyzing trace with hash -466072829, now seen corresponding path program 1 times [2020-09-25 04:22:06,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:06,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380562088] [2020-09-25 04:22:06,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:06,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:07,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:08,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-09-25 04:22:08,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:22:08,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1245 [2020-09-25 04:22:08,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:08,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-09-25 04:22:08,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 04:22:08,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:08,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:08,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:08,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:08,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:08,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:08,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:08,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:08,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:08,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:08,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 04:22:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:08,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380562088] [2020-09-25 04:22:08,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:08,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:08,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571722951] [2020-09-25 04:22:08,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:08,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:08,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:08,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:08,244 INFO L87 Difference]: Start difference. First operand 501 states and 604 transitions. Second operand 3 states. [2020-09-25 04:22:08,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:08,337 INFO L93 Difference]: Finished difference Result 1211 states and 1512 transitions. [2020-09-25 04:22:08,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:08,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-09-25 04:22:08,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:08,344 INFO L225 Difference]: With dead ends: 1211 [2020-09-25 04:22:08,344 INFO L226 Difference]: Without dead ends: 850 [2020-09-25 04:22:08,346 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 [2020-09-25 04:22:08,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2020-09-25 04:22:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 848. [2020-09-25 04:22:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2020-09-25 04:22:08,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1041 transitions. [2020-09-25 04:22:08,421 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1041 transitions. Word has length 169 [2020-09-25 04:22:08,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:08,422 INFO L479 AbstractCegarLoop]: Abstraction has 848 states and 1041 transitions. [2020-09-25 04:22:08,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:08,422 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1041 transitions. [2020-09-25 04:22:08,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 04:22:08,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:08,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:08,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:22:08,426 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:08,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:08,427 INFO L82 PathProgramCache]: Analyzing trace with hash -1669990880, now seen corresponding path program 1 times [2020-09-25 04:22:08,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:08,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546314032] [2020-09-25 04:22:08,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:08,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:08,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-25 04:22:09,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:09,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-09-25 04:22:09,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:09,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 04:22:09,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:09,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:09,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:09,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:09,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:09,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:09,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:09,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:09,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:09,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:09,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:09,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:09,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546314032] [2020-09-25 04:22:09,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:09,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:09,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261584525] [2020-09-25 04:22:09,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:09,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:09,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:09,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:09,271 INFO L87 Difference]: Start difference. First operand 848 states and 1041 transitions. Second operand 3 states. [2020-09-25 04:22:09,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:09,510 INFO L93 Difference]: Finished difference Result 1285 states and 1620 transitions. [2020-09-25 04:22:09,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:09,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-09-25 04:22:09,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:09,516 INFO L225 Difference]: With dead ends: 1285 [2020-09-25 04:22:09,517 INFO L226 Difference]: Without dead ends: 912 [2020-09-25 04:22:09,518 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 [2020-09-25 04:22:09,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2020-09-25 04:22:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 877. [2020-09-25 04:22:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 877 states. [2020-09-25 04:22:09,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1085 transitions. [2020-09-25 04:22:09,543 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1085 transitions. Word has length 170 [2020-09-25 04:22:09,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:09,544 INFO L479 AbstractCegarLoop]: Abstraction has 877 states and 1085 transitions. [2020-09-25 04:22:09,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1085 transitions. [2020-09-25 04:22:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 04:22:09,547 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:09,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:09,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:22:09,548 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:09,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1758330393, now seen corresponding path program 1 times [2020-09-25 04:22:09,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:09,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [188683132] [2020-09-25 04:22:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:09,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:09,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:10,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:10,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:11,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 04:22:11,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:11,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2343 [2020-09-25 04:22:11,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:11,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 04:22:11,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:11,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:11,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:11,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:11,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:11,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:11,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:11,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:11,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:11,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:11,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:11,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:11,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:12,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [188683132] [2020-09-25 04:22:12,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:12,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:12,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067328033] [2020-09-25 04:22:12,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:12,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:12,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:12,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:12,032 INFO L87 Difference]: Start difference. First operand 877 states and 1085 transitions. Second operand 3 states. [2020-09-25 04:22:12,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:12,268 INFO L93 Difference]: Finished difference Result 1726 states and 2218 transitions. [2020-09-25 04:22:12,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:12,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-09-25 04:22:12,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:12,275 INFO L225 Difference]: With dead ends: 1726 [2020-09-25 04:22:12,275 INFO L226 Difference]: Without dead ends: 989 [2020-09-25 04:22:12,277 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 [2020-09-25 04:22:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2020-09-25 04:22:12,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 973. [2020-09-25 04:22:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 973 states. [2020-09-25 04:22:12,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1199 transitions. [2020-09-25 04:22:12,308 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1199 transitions. Word has length 171 [2020-09-25 04:22:12,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:12,309 INFO L479 AbstractCegarLoop]: Abstraction has 973 states and 1199 transitions. [2020-09-25 04:22:12,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:12,309 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1199 transitions. [2020-09-25 04:22:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 04:22:12,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:12,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:12,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:22:12,312 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:12,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:12,313 INFO L82 PathProgramCache]: Analyzing trace with hash 469342649, now seen corresponding path program 1 times [2020-09-25 04:22:12,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:12,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [594579225] [2020-09-25 04:22:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:12,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:12,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:13,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-09-25 04:22:14,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:14,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1701 [2020-09-25 04:22:14,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:14,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 04:22:14,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:14,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:14,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:14,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:14,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:14,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:14,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:14,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:14,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:14,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:14,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:14,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:14,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [594579225] [2020-09-25 04:22:14,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:14,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:14,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608549457] [2020-09-25 04:22:14,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:14,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:14,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:14,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:14,095 INFO L87 Difference]: Start difference. First operand 973 states and 1199 transitions. Second operand 3 states. [2020-09-25 04:22:14,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:14,359 INFO L93 Difference]: Finished difference Result 1941 states and 2472 transitions. [2020-09-25 04:22:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:14,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2020-09-25 04:22:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:14,371 INFO L225 Difference]: With dead ends: 1941 [2020-09-25 04:22:14,371 INFO L226 Difference]: Without dead ends: 1084 [2020-09-25 04:22:14,375 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 [2020-09-25 04:22:14,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-09-25 04:22:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1035. [2020-09-25 04:22:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1035 states. [2020-09-25 04:22:14,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1035 states to 1035 states and 1295 transitions. [2020-09-25 04:22:14,417 INFO L78 Accepts]: Start accepts. Automaton has 1035 states and 1295 transitions. Word has length 171 [2020-09-25 04:22:14,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:14,418 INFO L479 AbstractCegarLoop]: Abstraction has 1035 states and 1295 transitions. [2020-09-25 04:22:14,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:14,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1035 states and 1295 transitions. [2020-09-25 04:22:14,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-25 04:22:14,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:14,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:14,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:22:14,422 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:14,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:14,423 INFO L82 PathProgramCache]: Analyzing trace with hash -978509581, now seen corresponding path program 1 times [2020-09-25 04:22:14,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:14,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [104275515] [2020-09-25 04:22:14,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:14,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:14,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:15,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 04:22:16,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:22:16,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2375 [2020-09-25 04:22:16,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 04:22:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:22:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:16,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:16,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:16,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:16,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:16,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:16,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:16,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:16,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:16,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:16,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:16,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [104275515] [2020-09-25 04:22:16,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:16,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:16,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631721840] [2020-09-25 04:22:16,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:16,890 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:16,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:16,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:16,891 INFO L87 Difference]: Start difference. First operand 1035 states and 1295 transitions. Second operand 3 states. [2020-09-25 04:22:17,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:17,120 INFO L93 Difference]: Finished difference Result 2111 states and 2724 transitions. [2020-09-25 04:22:17,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:17,121 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-09-25 04:22:17,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:17,127 INFO L225 Difference]: With dead ends: 2111 [2020-09-25 04:22:17,127 INFO L226 Difference]: Without dead ends: 1192 [2020-09-25 04:22:17,129 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 [2020-09-25 04:22:17,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2020-09-25 04:22:17,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1101. [2020-09-25 04:22:17,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1101 states. [2020-09-25 04:22:17,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1399 transitions. [2020-09-25 04:22:17,158 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1399 transitions. Word has length 173 [2020-09-25 04:22:17,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:17,158 INFO L479 AbstractCegarLoop]: Abstraction has 1101 states and 1399 transitions. [2020-09-25 04:22:17,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:17,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1399 transitions. [2020-09-25 04:22:17,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-25 04:22:17,161 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:17,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:17,162 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:22:17,162 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:17,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:17,163 INFO L82 PathProgramCache]: Analyzing trace with hash 310644027, now seen corresponding path program 1 times [2020-09-25 04:22:17,163 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:17,163 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394851372] [2020-09-25 04:22:17,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:17,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:17,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:18,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:19,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:19,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 04:22:19,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 04:22:19,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2698 [2020-09-25 04:22:19,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:19,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:19,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 04:22:19,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:22:19,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:19,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:19,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:19,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:19,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:19,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:19,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:19,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:19,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:19,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:19,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:19,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:19,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:19,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:19,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394851372] [2020-09-25 04:22:19,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:19,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:19,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928546079] [2020-09-25 04:22:19,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:19,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:19,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:19,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:19,935 INFO L87 Difference]: Start difference. First operand 1101 states and 1399 transitions. Second operand 3 states. [2020-09-25 04:22:20,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:20,208 INFO L93 Difference]: Finished difference Result 2174 states and 2845 transitions. [2020-09-25 04:22:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:20,208 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-09-25 04:22:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:20,216 INFO L225 Difference]: With dead ends: 2174 [2020-09-25 04:22:20,216 INFO L226 Difference]: Without dead ends: 1213 [2020-09-25 04:22:20,256 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 [2020-09-25 04:22:20,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2020-09-25 04:22:20,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1179. [2020-09-25 04:22:20,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1179 states. [2020-09-25 04:22:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1179 states to 1179 states and 1499 transitions. [2020-09-25 04:22:20,284 INFO L78 Accepts]: Start accepts. Automaton has 1179 states and 1499 transitions. Word has length 173 [2020-09-25 04:22:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:20,285 INFO L479 AbstractCegarLoop]: Abstraction has 1179 states and 1499 transitions. [2020-09-25 04:22:20,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:20,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1179 states and 1499 transitions. [2020-09-25 04:22:20,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 04:22:20,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:20,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:20,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:22:20,289 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:20,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:20,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1230208187, now seen corresponding path program 1 times [2020-09-25 04:22:20,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:20,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091540208] [2020-09-25 04:22:20,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:20,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:20,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:20,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:20,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:21,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:21,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:21,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-09-25 04:22:21,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:22:21,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1276 [2020-09-25 04:22:21,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:21,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:21,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:22:21,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 04:22:21,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:22:21,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:21,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:21,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:21,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:21,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:21,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:21,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:21,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:21,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:21,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:21,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:22:21,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:21,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091540208] [2020-09-25 04:22:21,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:21,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:22:21,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294612108] [2020-09-25 04:22:21,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:22:21,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:21,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:22:21,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:22:21,718 INFO L87 Difference]: Start difference. First operand 1179 states and 1499 transitions. Second operand 4 states. [2020-09-25 04:22:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:21,964 INFO L93 Difference]: Finished difference Result 2365 states and 3029 transitions. [2020-09-25 04:22:21,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:22:21,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2020-09-25 04:22:21,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:21,972 INFO L225 Difference]: With dead ends: 2365 [2020-09-25 04:22:21,973 INFO L226 Difference]: Without dead ends: 1326 [2020-09-25 04:22:21,976 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 [2020-09-25 04:22:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2020-09-25 04:22:22,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1249. [2020-09-25 04:22:22,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1249 states. [2020-09-25 04:22:22,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1575 transitions. [2020-09-25 04:22:22,030 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1575 transitions. Word has length 175 [2020-09-25 04:22:22,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:22,031 INFO L479 AbstractCegarLoop]: Abstraction has 1249 states and 1575 transitions. [2020-09-25 04:22:22,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:22:22,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1575 transitions. [2020-09-25 04:22:22,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 04:22:22,035 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:22,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:22,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:22:22,035 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:22,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:22,036 INFO L82 PathProgramCache]: Analyzing trace with hash -99229899, now seen corresponding path program 1 times [2020-09-25 04:22:22,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:22,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [341741933] [2020-09-25 04:22:22,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:22,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:22,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:22,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:26,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:26,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 04:22:26,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 04:22:26,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4161 [2020-09-25 04:22:26,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:26,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 172 [2020-09-25 04:22:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:22:26,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:26,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:26,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:26,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:26,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:26,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:26,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:22:26,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:26,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:26,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:26,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:26,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:26,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [341741933] [2020-09-25 04:22:26,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:26,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:26,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287316055] [2020-09-25 04:22:26,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:26,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:26,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:26,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:26,375 INFO L87 Difference]: Start difference. First operand 1249 states and 1575 transitions. Second operand 3 states. [2020-09-25 04:22:26,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:26,463 INFO L93 Difference]: Finished difference Result 3363 states and 4301 transitions. [2020-09-25 04:22:26,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:26,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 04:22:26,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:26,476 INFO L225 Difference]: With dead ends: 3363 [2020-09-25 04:22:26,477 INFO L226 Difference]: Without dead ends: 2254 [2020-09-25 04:22:26,481 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 [2020-09-25 04:22:26,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2020-09-25 04:22:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 1282. [2020-09-25 04:22:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2020-09-25 04:22:26,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1619 transitions. [2020-09-25 04:22:26,546 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1619 transitions. Word has length 180 [2020-09-25 04:22:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:26,547 INFO L479 AbstractCegarLoop]: Abstraction has 1282 states and 1619 transitions. [2020-09-25 04:22:26,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1619 transitions. [2020-09-25 04:22:26,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 04:22:26,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:26,551 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:26,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:22:26,551 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:26,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:26,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1893768638, now seen corresponding path program 1 times [2020-09-25 04:22:26,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:26,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982959603] [2020-09-25 04:22:26,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:26,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:26,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:26,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:26,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:26,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-25 04:22:26,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:26,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 04:22:26,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:26,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:22:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 04:22:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-09-25 04:22:26,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:27,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:27,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:27,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:27,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:27,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:27,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:27,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:27,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:27,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:27,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:27,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982959603] [2020-09-25 04:22:27,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:27,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 04:22:27,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368659438] [2020-09-25 04:22:27,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:22:27,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:27,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:22:27,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:22:27,113 INFO L87 Difference]: Start difference. First operand 1282 states and 1619 transitions. Second operand 7 states. [2020-09-25 04:22:27,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:27,414 INFO L93 Difference]: Finished difference Result 1974 states and 2521 transitions. [2020-09-25 04:22:27,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 04:22:27,414 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 182 [2020-09-25 04:22:27,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:27,419 INFO L225 Difference]: With dead ends: 1974 [2020-09-25 04:22:27,419 INFO L226 Difference]: Without dead ends: 832 [2020-09-25 04:22:27,422 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:22:27,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-09-25 04:22:27,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 796. [2020-09-25 04:22:27,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2020-09-25 04:22:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 989 transitions. [2020-09-25 04:22:27,457 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 989 transitions. Word has length 182 [2020-09-25 04:22:27,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:27,458 INFO L479 AbstractCegarLoop]: Abstraction has 796 states and 989 transitions. [2020-09-25 04:22:27,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:22:27,458 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 989 transitions. [2020-09-25 04:22:27,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-25 04:22:27,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:27,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:27,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:22:27,463 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:27,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:27,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1578833511, now seen corresponding path program 1 times [2020-09-25 04:22:27,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:27,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529111575] [2020-09-25 04:22:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:27,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:27,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:27,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 04:22:28,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-09-25 04:22:28,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 04:22:28,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 04:22:28,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:28,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:28,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:28,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:28,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:28,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:28,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:28,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:28,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:28,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529111575] [2020-09-25 04:22:28,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:28,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:28,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489238148] [2020-09-25 04:22:28,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:28,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:28,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:28,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:28,144 INFO L87 Difference]: Start difference. First operand 796 states and 989 transitions. Second operand 3 states. [2020-09-25 04:22:28,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:28,273 INFO L93 Difference]: Finished difference Result 2065 states and 2636 transitions. [2020-09-25 04:22:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:28,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-25 04:22:28,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:28,283 INFO L225 Difference]: With dead ends: 2065 [2020-09-25 04:22:28,283 INFO L226 Difference]: Without dead ends: 1425 [2020-09-25 04:22:28,293 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 [2020-09-25 04:22:28,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1425 states. [2020-09-25 04:22:28,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1425 to 1423. [2020-09-25 04:22:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2020-09-25 04:22:28,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1796 transitions. [2020-09-25 04:22:28,363 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1796 transitions. Word has length 204 [2020-09-25 04:22:28,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:28,364 INFO L479 AbstractCegarLoop]: Abstraction has 1423 states and 1796 transitions. [2020-09-25 04:22:28,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1796 transitions. [2020-09-25 04:22:28,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 04:22:28,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:28,369 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:28,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:22:28,369 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:28,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:28,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1941211029, now seen corresponding path program 1 times [2020-09-25 04:22:28,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:28,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568641011] [2020-09-25 04:22:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:28,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:28,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:28,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:28,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-25 04:22:28,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:28,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 559 [2020-09-25 04:22:28,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:28,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 04:22:28,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:22:28,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:29,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:29,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:29,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:29,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:29,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:29,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:29,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:29,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:29,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:29,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:29,054 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:22:29,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568641011] [2020-09-25 04:22:29,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:29,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:22:29,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955685866] [2020-09-25 04:22:29,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:22:29,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:29,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:22:29,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:22:29,057 INFO L87 Difference]: Start difference. First operand 1423 states and 1796 transitions. Second operand 4 states. [2020-09-25 04:22:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:29,487 INFO L93 Difference]: Finished difference Result 4077 states and 5224 transitions. [2020-09-25 04:22:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:22:29,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 216 [2020-09-25 04:22:29,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:29,503 INFO L225 Difference]: With dead ends: 4077 [2020-09-25 04:22:29,503 INFO L226 Difference]: Without dead ends: 2762 [2020-09-25 04:22:29,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:22:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2020-09-25 04:22:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 1431. [2020-09-25 04:22:29,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2020-09-25 04:22:29,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1786 transitions. [2020-09-25 04:22:29,587 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1786 transitions. Word has length 216 [2020-09-25 04:22:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:29,588 INFO L479 AbstractCegarLoop]: Abstraction has 1431 states and 1786 transitions. [2020-09-25 04:22:29,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:22:29,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1786 transitions. [2020-09-25 04:22:29,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 04:22:29,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:29,596 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:29,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:22:29,596 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:29,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:29,597 INFO L82 PathProgramCache]: Analyzing trace with hash -165389337, now seen corresponding path program 1 times [2020-09-25 04:22:29,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:29,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256266137] [2020-09-25 04:22:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:29,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:29,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:30,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:30,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 04:22:30,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:30,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-09-25 04:22:30,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:30,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:30,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-25 04:22:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 04:22:30,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:22:30,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:30,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:30,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:30,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:30,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:30,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:30,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:30,191 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 04:22:30,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256266137] [2020-09-25 04:22:30,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:30,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:30,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238470621] [2020-09-25 04:22:30,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:30,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:30,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:30,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:30,195 INFO L87 Difference]: Start difference. First operand 1431 states and 1786 transitions. Second operand 3 states. [2020-09-25 04:22:30,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:30,329 INFO L93 Difference]: Finished difference Result 3339 states and 4225 transitions. [2020-09-25 04:22:30,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:30,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 04:22:30,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:30,342 INFO L225 Difference]: With dead ends: 3339 [2020-09-25 04:22:30,342 INFO L226 Difference]: Without dead ends: 2064 [2020-09-25 04:22:30,348 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 [2020-09-25 04:22:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2020-09-25 04:22:30,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 2062. [2020-09-25 04:22:30,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2062 states. [2020-09-25 04:22:30,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2590 transitions. [2020-09-25 04:22:30,418 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2590 transitions. Word has length 232 [2020-09-25 04:22:30,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:30,419 INFO L479 AbstractCegarLoop]: Abstraction has 2062 states and 2590 transitions. [2020-09-25 04:22:30,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:30,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2590 transitions. [2020-09-25 04:22:30,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-09-25 04:22:30,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:30,425 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:30,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 04:22:30,425 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:30,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:30,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1624554569, now seen corresponding path program 1 times [2020-09-25 04:22:30,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:30,427 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940278978] [2020-09-25 04:22:30,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:30,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:30,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:30,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:31,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:31,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 04:22:31,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:22:31,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1085 [2020-09-25 04:22:31,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:31,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:31,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:22:31,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 04:22:31,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 04:22:31,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:31,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:31,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:31,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:31,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:31,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:31,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:31,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:31,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:31,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:31,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-25 04:22:31,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940278978] [2020-09-25 04:22:31,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:31,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:22:31,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454973313] [2020-09-25 04:22:31,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:22:31,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:31,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:22:31,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:22:31,619 INFO L87 Difference]: Start difference. First operand 2062 states and 2590 transitions. Second operand 3 states. [2020-09-25 04:22:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:31,714 INFO L93 Difference]: Finished difference Result 3393 states and 4284 transitions. [2020-09-25 04:22:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:22:31,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2020-09-25 04:22:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:31,722 INFO L225 Difference]: With dead ends: 3393 [2020-09-25 04:22:31,722 INFO L226 Difference]: Without dead ends: 1487 [2020-09-25 04:22:31,727 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 [2020-09-25 04:22:31,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1487 states. [2020-09-25 04:22:31,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1487 to 1487. [2020-09-25 04:22:31,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1487 states. [2020-09-25 04:22:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1853 transitions. [2020-09-25 04:22:31,815 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1853 transitions. Word has length 243 [2020-09-25 04:22:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:31,815 INFO L479 AbstractCegarLoop]: Abstraction has 1487 states and 1853 transitions. [2020-09-25 04:22:31,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:22:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1853 transitions. [2020-09-25 04:22:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-25 04:22:31,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:31,821 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:31,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-25 04:22:31,821 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:31,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:31,822 INFO L82 PathProgramCache]: Analyzing trace with hash -662598379, now seen corresponding path program 1 times [2020-09-25 04:22:31,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:31,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [993572989] [2020-09-25 04:22:31,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:31,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:32,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:32,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:32,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 04:22:32,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:32,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-09-25 04:22:32,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:32,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:32,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:22:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 193 [2020-09-25 04:22:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:22:32,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:32,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:32,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:32,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:32,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:32,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:32,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:32,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:32,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:32,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:32,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:32,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:32,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 04:22:32,439 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [993572989] [2020-09-25 04:22:32,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:32,440 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:22:32,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632116880] [2020-09-25 04:22:32,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:22:32,441 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:32,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:22:32,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:22:32,442 INFO L87 Difference]: Start difference. First operand 1487 states and 1853 transitions. Second operand 4 states. [2020-09-25 04:22:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:32,932 INFO L93 Difference]: Finished difference Result 4275 states and 5449 transitions. [2020-09-25 04:22:32,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:22:32,933 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2020-09-25 04:22:32,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:32,948 INFO L225 Difference]: With dead ends: 4275 [2020-09-25 04:22:32,948 INFO L226 Difference]: Without dead ends: 2944 [2020-09-25 04:22:32,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:22:32,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2020-09-25 04:22:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1557. [2020-09-25 04:22:33,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1557 states. [2020-09-25 04:22:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 1963 transitions. [2020-09-25 04:22:33,028 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 1963 transitions. Word has length 244 [2020-09-25 04:22:33,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:33,029 INFO L479 AbstractCegarLoop]: Abstraction has 1557 states and 1963 transitions. [2020-09-25 04:22:33,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:22:33,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 1963 transitions. [2020-09-25 04:22:33,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-25 04:22:33,035 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:33,035 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:33,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-25 04:22:33,036 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:33,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:33,036 INFO L82 PathProgramCache]: Analyzing trace with hash -196875119, now seen corresponding path program 1 times [2020-09-25 04:22:33,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:33,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149356845] [2020-09-25 04:22:33,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:22:33,071 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:22:33,072 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:22:33,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-25 04:22:33,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:22:33 BoogieIcfgContainer [2020-09-25 04:22:33,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:22:33,148 INFO L168 Benchmark]: Toolchain (without parser) took 34467.55 ms. Allocated memory was 140.0 MB in the beginning and 584.1 MB in the end (delta: 444.1 MB). Free memory was 101.4 MB in the beginning and 240.9 MB in the end (delta: -139.5 MB). Peak memory consumption was 304.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:33,149 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:22:33,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.85 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 177.5 MB in the end (delta: -76.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:33,155 INFO L168 Benchmark]: Boogie Preprocessor took 66.56 ms. Allocated memory is still 202.9 MB. Free memory was 177.5 MB in the beginning and 174.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:33,155 INFO L168 Benchmark]: RCFGBuilder took 1058.57 ms. Allocated memory is still 202.9 MB. Free memory was 174.8 MB in the beginning and 102.1 MB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:33,156 INFO L168 Benchmark]: TraceAbstraction took 32730.25 ms. Allocated memory was 202.9 MB in the beginning and 584.1 MB in the end (delta: 381.2 MB). Free memory was 101.4 MB in the beginning and 240.9 MB in the end (delta: -139.5 MB). Peak memory consumption was 241.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:33,162 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 600.85 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.8 MB in the beginning and 177.5 MB in the end (delta: -76.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.56 ms. Allocated memory is still 202.9 MB. Free memory was 177.5 MB in the beginning and 174.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1058.57 ms. Allocated memory is still 202.9 MB. Free memory was 174.8 MB in the beginning and 102.1 MB in the end (delta: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 32730.25 ms. Allocated memory was 202.9 MB in the beginning and 584.1 MB in the end (delta: 381.2 MB). Free memory was 101.4 MB in the beginning and 240.9 MB in the end (delta: -139.5 MB). Peak memory consumption was 241.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 642]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L647] int s ; [L648] int tmp ; [L652] s = 8464 [L653] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 = __VERIFIER_nondet_int() ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__state = initial_state [L73] blastFlag = 0 [L74] tmp = __VERIFIER_nondet_int() [L75] Time = tmp [L76] cb = 0 [L77] ret = -1 [L78] skip = 0 [L79] got_new_session = 0 [L80] COND TRUE s__info_callback != 0 [L81] cb = s__info_callback [L87] s__in_handshake ++ [L88] COND FALSE !(tmp___1 + 12288) [L93] COND FALSE !(s__cert == 0) [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND TRUE s__state == 8464 [L270] s__shutdown = 0 [L271] ret = __VERIFIER_nondet_int() [L272] COND TRUE blastFlag == 0 [L273] blastFlag = 1 [L275] COND FALSE !(ret <= 0) [L278] got_new_session = 1 [L279] s__state = 8496 [L280] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND TRUE s__state == 8496 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L288] COND FALSE !(ret <= 0) [L291] COND FALSE !(\read(s__hit)) [L294] s__state = 8512 [L296] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND TRUE s__state == 8512 [L301] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L302] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L303] COND TRUE __cil_tmp56 + 256UL [L304] skip = 1 [L315] s__state = 8528 [L316] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND FALSE !(! s__s3__tmp__reuse_message) [L631] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 8192) [L109] COND FALSE !(s__state == 24576) [L112] COND FALSE !(s__state == 8195) [L115] COND FALSE !(s__state == 8480) [L118] COND FALSE !(s__state == 8481) [L121] COND FALSE !(s__state == 8482) [L124] COND FALSE !(s__state == 8464) [L127] COND FALSE !(s__state == 8465) [L130] COND FALSE !(s__state == 8466) [L133] COND FALSE !(s__state == 8496) [L136] COND FALSE !(s__state == 8497) [L139] COND FALSE !(s__state == 8512) [L142] COND FALSE !(s__state == 8513) [L145] COND TRUE s__state == 8528 [L320] s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() [L321] l = (unsigned long )s__s3__tmp__new_cipher__algorithms [L323] __cil_tmp57 = (unsigned long )s__options [L324] COND TRUE __cil_tmp57 + 2097152UL [L325] s__s3__tmp__use_rsa_tmp = 1 [L330] COND TRUE \read(s__s3__tmp__use_rsa_tmp) [L357] ret = __VERIFIER_nondet_int() [L358] COND FALSE !(blastFlag == 6) [L361] COND FALSE !(ret <= 0) [L378] s__state = 8544 [L379] s__init_num = 0 [L599] s__s3__tmp__reuse_message = __VERIFIER_nondet_int() [L600] COND TRUE ! s__s3__tmp__reuse_message [L601] COND TRUE ! skip [L602] COND TRUE state == 8528 [L603] COND TRUE s__state == 8544 [L604] COND TRUE tmp___7 != 1024 [L605] COND TRUE tmp___7 != 512 [L606] COND TRUE __cil_tmp58 != 4294967294 [L607] COND TRUE l != 4294967266 [L642] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 440 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.5s, OverallIterations: 18, TraceHistogramMax: 4, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9088 SDtfs, 4927 SDslu, 8584 SDs, 0 SdLazy, 2022 SolverSat, 459 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2062occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 17 MinimizatonAttempts, 4062 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 25.6s InterpolantComputationTime, 3459 NumberOfCodeBlocks, 3459 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3177 ConstructedInterpolants, 0 QuantifiedInterpolants, 871829 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 171/171 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 incorrect! Received shutdown request...