/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=0.6 --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_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:38:56,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:38:56,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:38:56,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:38:56,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:38:56,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:38:56,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:38:56,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:38:56,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:38:56,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:38:56,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:38:56,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:38:56,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:38:56,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:38:56,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:38:56,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:38:56,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:38:56,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:38:56,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:38:56,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:38:56,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:38:56,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:38:56,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:38:56,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:38:56,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:38:56,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:38:56,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:38:56,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:38:56,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:38:56,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:38:56,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:38:56,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:38:56,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:38:56,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:38:56,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:38:56,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:38:56,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:38:56,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:38:56,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:38:56,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:38:56,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:38:56,234 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 06:38:56,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:38:56,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:38:56,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:38:56,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:38:56,283 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:38:56,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:38:56,284 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:38:56,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:38:56,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:38:56,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:38:56,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:38:56,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:38:56,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:38:56,286 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:38:56,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:38:56,287 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:38:56,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:38:56,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:38:56,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:38:56,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:38:56,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:38:56,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:38:56,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:38:56,288 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:38:56,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:38:56,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:38:56,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:38:56,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:38:56,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:38:56,290 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:38:56,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:38:56,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:38:56,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:38:56,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:38:56,761 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:38:56,762 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 06:38:56,840 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d8fb9131/56022a46357447dbbeadb02eb43b1a00/FLAG908a26cd3 [2020-09-25 06:38:57,352 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:38:57,353 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 06:38:57,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d8fb9131/56022a46357447dbbeadb02eb43b1a00/FLAG908a26cd3 [2020-09-25 06:38:57,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9d8fb9131/56022a46357447dbbeadb02eb43b1a00 [2020-09-25 06:38:57,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:38:57,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:38:57,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:38:57,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:38:57,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:38:57,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:38:57" (1/1) ... [2020-09-25 06:38:57,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651f0a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:57, skipping insertion in model container [2020-09-25 06:38:57,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:38:57" (1/1) ... [2020-09-25 06:38:57,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:38:57,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:38:58,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:38:58,036 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:38:58,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:38:58,208 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:38:58,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58 WrapperNode [2020-09-25 06:38:58,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:38:58,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:38:58,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:38:58,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:38:58,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (1/1) ... [2020-09-25 06:38:58,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (1/1) ... [2020-09-25 06:38:58,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (1/1) ... [2020-09-25 06:38:58,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (1/1) ... [2020-09-25 06:38:58,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (1/1) ... [2020-09-25 06:38:58,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (1/1) ... [2020-09-25 06:38:58,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (1/1) ... [2020-09-25 06:38:58,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:38:58,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:38:58,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:38:58,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:38:58,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (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 06:38:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:38:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:38:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 06:38:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:38:58,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:38:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 06:38:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:38:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 06:38:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 06:38:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:38:58,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:38:58,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:38:58,515 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:59,208 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 06:38:59,208 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 06:38:59,235 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:38:59,235 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:38:59,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:38:59 BoogieIcfgContainer [2020-09-25 06:38:59,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:38:59,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:38:59,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:38:59,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:38:59,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:38:57" (1/3) ... [2020-09-25 06:38:59,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76dde5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:38:59, skipping insertion in model container [2020-09-25 06:38:59,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:58" (2/3) ... [2020-09-25 06:38:59,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76dde5aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:38:59, skipping insertion in model container [2020-09-25 06:38:59,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:38:59" (3/3) ... [2020-09-25 06:38:59,253 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-09-25 06:38:59,265 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:38:59,276 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:38:59,299 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:38:59,333 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:38:59,333 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:38:59,333 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:38:59,334 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:38:59,334 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:38:59,334 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:38:59,334 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:38:59,334 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:38:59,365 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-09-25 06:38:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:38:59,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:59,386 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] [2020-09-25 06:38:59,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:59,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:59,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-09-25 06:38:59,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:59,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765250391] [2020-09-25 06:38:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:59,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 06:39:00,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:39:00,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1201 [2020-09-25 06:39:00,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 06:39:00,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 06:39:00,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:39:00,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:00,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:00,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:00,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:00,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:00,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:00,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:00,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:00,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:00,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:00,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:00,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:01,042 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765250391] [2020-09-25 06:39:01,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:01,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:01,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778544869] [2020-09-25 06:39:01,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:01,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:01,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:01,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:01,074 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 3 states. [2020-09-25 06:39:01,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:01,231 INFO L93 Difference]: Finished difference Result 859 states and 1116 transitions. [2020-09-25 06:39:01,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:01,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-09-25 06:39:01,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:01,257 INFO L225 Difference]: With dead ends: 859 [2020-09-25 06:39:01,257 INFO L226 Difference]: Without dead ends: 542 [2020-09-25 06:39:01,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:01,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-25 06:39:01,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2020-09-25 06:39:01,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-25 06:39:01,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 648 transitions. [2020-09-25 06:39:01,352 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 648 transitions. Word has length 167 [2020-09-25 06:39:01,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:01,353 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 648 transitions. [2020-09-25 06:39:01,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:01,353 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 648 transitions. [2020-09-25 06:39:01,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 06:39:01,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:01,359 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 06:39:01,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:39:01,360 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:01,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:01,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1853292792, now seen corresponding path program 1 times [2020-09-25 06:39:01,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:01,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [908335212] [2020-09-25 06:39:01,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:01,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:01,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:01,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:01,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:01,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:02,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:02,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 06:39:02,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:39:02,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1516 [2020-09-25 06:39:02,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:02,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:02,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 06:39:02,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 06:39:02,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:02,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:02,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:02,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:02,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:02,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:02,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:39:02,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:02,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:02,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:02,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:02,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:02,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:39:03,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [908335212] [2020-09-25 06:39:03,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:03,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:03,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423373866] [2020-09-25 06:39:03,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:03,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:03,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:03,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:03,022 INFO L87 Difference]: Start difference. First operand 542 states and 648 transitions. Second operand 3 states. [2020-09-25 06:39:03,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:03,100 INFO L93 Difference]: Finished difference Result 935 states and 1148 transitions. [2020-09-25 06:39:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:03,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-25 06:39:03,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:03,108 INFO L225 Difference]: With dead ends: 935 [2020-09-25 06:39:03,108 INFO L226 Difference]: Without dead ends: 735 [2020-09-25 06:39:03,110 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 06:39:03,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-09-25 06:39:03,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-09-25 06:39:03,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 06:39:03,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 891 transitions. [2020-09-25 06:39:03,144 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 891 transitions. Word has length 187 [2020-09-25 06:39:03,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:03,146 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 891 transitions. [2020-09-25 06:39:03,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:03,146 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 891 transitions. [2020-09-25 06:39:03,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 06:39:03,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:03,153 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:03,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:39:03,154 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:03,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:03,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2121553579, now seen corresponding path program 1 times [2020-09-25 06:39:03,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:03,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090449841] [2020-09-25 06:39:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:03,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:03,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:03,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:04,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:04,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 06:39:04,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:39:04,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1260 [2020-09-25 06:39:04,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:04,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:04,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 06:39:04,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 06:39:04,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:04,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:04,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:04,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:04,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:04,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:04,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:04,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:04,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:04,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:04,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:04,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:04,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 06:39:04,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090449841] [2020-09-25 06:39:04,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:04,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:04,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002334641] [2020-09-25 06:39:04,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:04,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:04,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:04,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:04,540 INFO L87 Difference]: Start difference. First operand 735 states and 891 transitions. Second operand 3 states. [2020-09-25 06:39:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:04,619 INFO L93 Difference]: Finished difference Result 1321 states and 1634 transitions. [2020-09-25 06:39:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:04,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-09-25 06:39:04,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:04,626 INFO L225 Difference]: With dead ends: 1321 [2020-09-25 06:39:04,626 INFO L226 Difference]: Without dead ends: 928 [2020-09-25 06:39:04,628 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 06:39:04,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-09-25 06:39:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2020-09-25 06:39:04,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-09-25 06:39:04,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1135 transitions. [2020-09-25 06:39:04,653 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1135 transitions. Word has length 208 [2020-09-25 06:39:04,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:04,654 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1135 transitions. [2020-09-25 06:39:04,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:04,655 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1135 transitions. [2020-09-25 06:39:04,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 06:39:04,663 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:04,663 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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] [2020-09-25 06:39:04,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:39:04,664 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:04,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:04,664 INFO L82 PathProgramCache]: Analyzing trace with hash -951989695, now seen corresponding path program 1 times [2020-09-25 06:39:04,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:04,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [466416454] [2020-09-25 06:39:04,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:04,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:04,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:04,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:05,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:06,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 06:39:08,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:39:08,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3340 [2020-09-25 06:39:08,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:08,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 214 [2020-09-25 06:39:08,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 06:39:08,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:08,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:08,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:08,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:08,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:08,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:08,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:08,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:08,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:08,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:08,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:08,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 06:39:08,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [466416454] [2020-09-25 06:39:08,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:08,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:08,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499301574] [2020-09-25 06:39:08,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:08,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:08,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:08,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:08,149 INFO L87 Difference]: Start difference. First operand 928 states and 1135 transitions. Second operand 3 states. [2020-09-25 06:39:08,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:08,229 INFO L93 Difference]: Finished difference Result 1707 states and 2122 transitions. [2020-09-25 06:39:08,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:08,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 06:39:08,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:08,236 INFO L225 Difference]: With dead ends: 1707 [2020-09-25 06:39:08,236 INFO L226 Difference]: Without dead ends: 1121 [2020-09-25 06:39:08,238 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 06:39:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2020-09-25 06:39:08,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2020-09-25 06:39:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-09-25 06:39:08,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1380 transitions. [2020-09-25 06:39:08,267 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1380 transitions. Word has length 232 [2020-09-25 06:39:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:08,268 INFO L479 AbstractCegarLoop]: Abstraction has 1121 states and 1380 transitions. [2020-09-25 06:39:08,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:08,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1380 transitions. [2020-09-25 06:39:08,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 06:39:08,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:08,275 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:08,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:39:08,276 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:08,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:08,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1507788610, now seen corresponding path program 1 times [2020-09-25 06:39:08,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:08,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679093729] [2020-09-25 06:39:08,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:08,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:08,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:09,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:09,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 06:39:09,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:39:09,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1277 [2020-09-25 06:39:09,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:09,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:09,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:39:09,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 06:39:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:39:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:09,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:09,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:09,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:09,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:09,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:09,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:09,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:09,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:09,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:09,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:09,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:09,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:09,681 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 06:39:09,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679093729] [2020-09-25 06:39:09,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:09,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:39:09,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293720128] [2020-09-25 06:39:09,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:39:09,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:09,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:39:09,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:39:09,684 INFO L87 Difference]: Start difference. First operand 1121 states and 1380 transitions. Second operand 3 states. [2020-09-25 06:39:09,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:09,948 INFO L93 Difference]: Finished difference Result 2403 states and 3107 transitions. [2020-09-25 06:39:09,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:39:09,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 257 [2020-09-25 06:39:09,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:09,956 INFO L225 Difference]: With dead ends: 2403 [2020-09-25 06:39:09,957 INFO L226 Difference]: Without dead ends: 1426 [2020-09-25 06:39:09,959 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 06:39:09,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-09-25 06:39:09,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1341. [2020-09-25 06:39:09,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-09-25 06:39:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1645 transitions. [2020-09-25 06:39:09,999 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1645 transitions. Word has length 257 [2020-09-25 06:39:10,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:10,000 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1645 transitions. [2020-09-25 06:39:10,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:39:10,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1645 transitions. [2020-09-25 06:39:10,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 06:39:10,006 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:10,006 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:10,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:39:10,007 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:10,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:10,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1870764962, now seen corresponding path program 1 times [2020-09-25 06:39:10,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:10,008 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711364956] [2020-09-25 06:39:10,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:10,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:10,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:10,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:10,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 06:39:10,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:10,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-09-25 06:39:10,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:10,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:10,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:39:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:39:10,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 06:39:10,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:10,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:10,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:10,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:10,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:10,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:10,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:10,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:10,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:10,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:10,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:10,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:39:10,827 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 06:39:10,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711364956] [2020-09-25 06:39:10,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:10,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:39:10,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266430281] [2020-09-25 06:39:10,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:39:10,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:10,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:39:10,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:39:10,830 INFO L87 Difference]: Start difference. First operand 1341 states and 1645 transitions. Second operand 6 states. [2020-09-25 06:39:11,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:11,085 INFO L93 Difference]: Finished difference Result 2669 states and 3333 transitions. [2020-09-25 06:39:11,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:39:11,085 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-09-25 06:39:11,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:11,102 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 06:39:11,102 INFO L226 Difference]: Without dead ends: 1477 [2020-09-25 06:39:11,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:39:11,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-09-25 06:39:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1431. [2020-09-25 06:39:11,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2020-09-25 06:39:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1785 transitions. [2020-09-25 06:39:11,152 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1785 transitions. Word has length 257 [2020-09-25 06:39:11,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:11,152 INFO L479 AbstractCegarLoop]: Abstraction has 1431 states and 1785 transitions. [2020-09-25 06:39:11,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:39:11,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1785 transitions. [2020-09-25 06:39:11,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-25 06:39:11,159 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:11,160 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:11,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:39:11,160 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:11,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:11,161 INFO L82 PathProgramCache]: Analyzing trace with hash -225222432, now seen corresponding path program 1 times [2020-09-25 06:39:11,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:11,162 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661290922] [2020-09-25 06:39:11,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:11,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:11,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:12,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:12,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-25 06:39:12,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:12,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-25 06:39:12,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:12,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:12,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:39:12,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:39:12,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 06:39:12,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:12,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:12,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:12,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:12,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:12,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:12,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:12,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:12,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:12,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:12,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:12,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:12,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:12,444 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 06:39:12,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661290922] [2020-09-25 06:39:12,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:12,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:39:12,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132566804] [2020-09-25 06:39:12,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:39:12,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:12,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:39:12,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:39:12,447 INFO L87 Difference]: Start difference. First operand 1431 states and 1785 transitions. Second operand 6 states. [2020-09-25 06:39:12,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:12,773 INFO L93 Difference]: Finished difference Result 2822 states and 3566 transitions. [2020-09-25 06:39:12,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:39:12,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 258 [2020-09-25 06:39:12,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:12,781 INFO L225 Difference]: With dead ends: 2822 [2020-09-25 06:39:12,781 INFO L226 Difference]: Without dead ends: 1512 [2020-09-25 06:39:12,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:39:12,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-09-25 06:39:12,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1437. [2020-09-25 06:39:12,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1437 states. [2020-09-25 06:39:12,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1793 transitions. [2020-09-25 06:39:12,836 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1793 transitions. Word has length 258 [2020-09-25 06:39:12,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:12,837 INFO L479 AbstractCegarLoop]: Abstraction has 1437 states and 1793 transitions. [2020-09-25 06:39:12,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:39:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1793 transitions. [2020-09-25 06:39:12,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 06:39:12,844 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:12,844 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:12,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:39:12,845 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:12,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:12,845 INFO L82 PathProgramCache]: Analyzing trace with hash 488549191, now seen corresponding path program 1 times [2020-09-25 06:39:12,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:12,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957635790] [2020-09-25 06:39:12,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:12,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:13,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:13,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:13,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-25 06:39:13,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:39:13,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-25 06:39:13,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:13,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:13,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:39:13,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 06:39:13,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 06:39:13,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:39:14,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:39:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:39:14,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:39:14,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:39:14,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:39:14,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:39:14,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:39:14,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:39:14,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:39:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:39:14,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:39:14,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:39:14,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:39:14,169 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 06:39:14,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957635790] [2020-09-25 06:39:14,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:39:14,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:39:14,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975280979] [2020-09-25 06:39:14,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:39:14,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:39:14,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:39:14,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:39:14,173 INFO L87 Difference]: Start difference. First operand 1437 states and 1793 transitions. Second operand 6 states. [2020-09-25 06:39:14,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:39:14,508 INFO L93 Difference]: Finished difference Result 2719 states and 3425 transitions. [2020-09-25 06:39:14,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 06:39:14,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 276 [2020-09-25 06:39:14,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:39:14,520 INFO L225 Difference]: With dead ends: 2719 [2020-09-25 06:39:14,520 INFO L226 Difference]: Without dead ends: 1434 [2020-09-25 06:39:14,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 06:39:14,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-09-25 06:39:14,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2020-09-25 06:39:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2020-09-25 06:39:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1788 transitions. [2020-09-25 06:39:14,578 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1788 transitions. Word has length 276 [2020-09-25 06:39:14,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:39:14,579 INFO L479 AbstractCegarLoop]: Abstraction has 1434 states and 1788 transitions. [2020-09-25 06:39:14,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:39:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1788 transitions. [2020-09-25 06:39:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-25 06:39:14,586 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:39:14,586 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:39:14,586 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:39:14,587 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:39:14,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:39:14,587 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-09-25 06:39:14,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:39:14,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394618857] [2020-09-25 06:39:14,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:39:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:39:14,634 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:39:14,635 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:39:14,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 06:39:14,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:39:14 BoogieIcfgContainer [2020-09-25 06:39:14,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:39:14,703 INFO L168 Benchmark]: Toolchain (without parser) took 17013.80 ms. Allocated memory was 144.2 MB in the beginning and 429.4 MB in the end (delta: 285.2 MB). Free memory was 103.1 MB in the beginning and 348.5 MB in the end (delta: -245.4 MB). Peak memory consumption was 39.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:14,704 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:39:14,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.93 ms. Allocated memory was 144.2 MB in the beginning and 205.5 MB in the end (delta: 61.3 MB). Free memory was 102.5 MB in the beginning and 181.1 MB in the end (delta: -78.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:14,706 INFO L168 Benchmark]: Boogie Preprocessor took 71.10 ms. Allocated memory is still 205.5 MB. Free memory was 181.1 MB in the beginning and 178.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:14,707 INFO L168 Benchmark]: RCFGBuilder took 960.15 ms. Allocated memory is still 205.5 MB. Free memory was 178.3 MB in the beginning and 113.7 MB in the end (delta: 64.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:39:14,710 INFO L168 Benchmark]: TraceAbstraction took 15449.19 ms. Allocated memory was 205.5 MB in the beginning and 429.4 MB in the end (delta: 223.9 MB). Free memory was 113.0 MB in the beginning and 348.5 MB in the end (delta: -235.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:39:14,721 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.2 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 524.93 ms. Allocated memory was 144.2 MB in the beginning and 205.5 MB in the end (delta: 61.3 MB). Free memory was 102.5 MB in the beginning and 181.1 MB in the end (delta: -78.6 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.10 ms. Allocated memory is still 205.5 MB. Free memory was 181.1 MB in the beginning and 178.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 960.15 ms. Allocated memory is still 205.5 MB. Free memory was 178.3 MB in the beginning and 113.7 MB in the end (delta: 64.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15449.19 ms. Allocated memory was 205.5 MB in the beginning and 429.4 MB in the end (delta: 223.9 MB). Free memory was 113.0 MB in the beginning and 348.5 MB in the end (delta: -235.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(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__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags = __VERIFIER_nondet_int() ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 = __VERIFIER_nondet_int() ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 + 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version + 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 391 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.3s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3206 SDtfs, 3534 SDslu, 3743 SDs, 0 SdLazy, 632 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1437occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 206 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.0s InterpolantComputationTime, 2122 NumberOfCodeBlocks, 2122 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1834 ConstructedInterpolants, 0 QuantifiedInterpolants, 751180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 578/578 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...