/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=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:52:04,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:52:04,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:52:04,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:52:04,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:52:04,147 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:52:04,149 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:52:04,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:52:04,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:52:04,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:52:04,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:52:04,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:52:04,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:52:04,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:52:04,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:52:04,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:52:04,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:52:04,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:52:04,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:52:04,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:52:04,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:52:04,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:52:04,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:52:04,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:52:04,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:52:04,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:52:04,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:52:04,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:52:04,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:52:04,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:52:04,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:52:04,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:52:04,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:52:04,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:52:04,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:52:04,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:52:04,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:52:04,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:52:04,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:52:04,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:52:04,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:52:04,190 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 08:52:04,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:52:04,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:52:04,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:52:04,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:52:04,219 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:52:04,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:52:04,219 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:52:04,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:52:04,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:52:04,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:52:04,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:52:04,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:52:04,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:52:04,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:52:04,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:52:04,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:52:04,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:52:04,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:52:04,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:52:04,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:52:04,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:52:04,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:52:04,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:52:04,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:52:04,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:52:04,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:52:04,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:52:04,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:52:04,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:52:04,224 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:52:04,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:52:04,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:52:04,742 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:52:04,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:52:04,745 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:52:04,746 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 08:52:04,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10da7a944/a07d9e6a6a2448ebaa3039d42a4d7921/FLAGc103d77cf [2020-09-25 08:52:05,367 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:52:05,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 08:52:05,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10da7a944/a07d9e6a6a2448ebaa3039d42a4d7921/FLAGc103d77cf [2020-09-25 08:52:05,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/10da7a944/a07d9e6a6a2448ebaa3039d42a4d7921 [2020-09-25 08:52:05,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:52:05,697 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:52:05,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:52:05,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:52:05,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:52:05,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:52:05" (1/1) ... [2020-09-25 08:52:05,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a565b34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:05, skipping insertion in model container [2020-09-25 08:52:05,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:52:05" (1/1) ... [2020-09-25 08:52:05,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:52:05,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:52:06,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:52:06,084 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:52:06,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:52:06,286 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:52:06,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06 WrapperNode [2020-09-25 08:52:06,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:52:06,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:52:06,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:52:06,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:52:06,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (1/1) ... [2020-09-25 08:52:06,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (1/1) ... [2020-09-25 08:52:06,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (1/1) ... [2020-09-25 08:52:06,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (1/1) ... [2020-09-25 08:52:06,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (1/1) ... [2020-09-25 08:52:06,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (1/1) ... [2020-09-25 08:52:06,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (1/1) ... [2020-09-25 08:52:06,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:52:06,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:52:06,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:52:06,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:52:06,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (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 08:52:06,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:52:06,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:52:06,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 08:52:06,434 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:52:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:52:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:52:06,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 08:52:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 08:52:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:52:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:52:06,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:52:06,599 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 08:52:07,272 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-25 08:52:07,273 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-25 08:52:07,297 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:52:07,298 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 08:52:07,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:52:07 BoogieIcfgContainer [2020-09-25 08:52:07,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:52:07,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:52:07,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:52:07,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:52:07,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:52:05" (1/3) ... [2020-09-25 08:52:07,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187bed47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:52:07, skipping insertion in model container [2020-09-25 08:52:07,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:52:06" (2/3) ... [2020-09-25 08:52:07,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@187bed47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:52:07, skipping insertion in model container [2020-09-25 08:52:07,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:52:07" (3/3) ... [2020-09-25 08:52:07,319 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-25 08:52:07,331 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:52:07,344 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:52:07,366 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:52:07,397 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:52:07,397 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:52:07,397 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:52:07,397 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:52:07,397 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:52:07,397 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:52:07,398 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:52:07,398 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:52:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 08:52:07,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:52:07,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:07,445 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] [2020-09-25 08:52:07,446 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:07,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:07,453 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-25 08:52:07,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:07,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850627501] [2020-09-25 08:52:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:07,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:08,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:08,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:08,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 08:52:08,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:08,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 481 [2020-09-25 08:52:08,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:08,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 08:52:08,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 08:52:08,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:52:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:08,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:08,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:08,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:08,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:08,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:08,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:52:08,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:08,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:08,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:08,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:08,335 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 08:52:08,336 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850627501] [2020-09-25 08:52:08,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:08,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:52:08,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786525788] [2020-09-25 08:52:08,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:52:08,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:08,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:52:08,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:52:08,370 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 08:52:08,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:08,707 INFO L93 Difference]: Finished difference Result 635 states and 851 transitions. [2020-09-25 08:52:08,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:52:08,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:52:08,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:08,729 INFO L225 Difference]: With dead ends: 635 [2020-09-25 08:52:08,729 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 08:52:08,736 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 08:52:08,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 08:52:08,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-09-25 08:52:08,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-25 08:52:08,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 380 transitions. [2020-09-25 08:52:08,834 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 380 transitions. Word has length 142 [2020-09-25 08:52:08,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:08,839 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 380 transitions. [2020-09-25 08:52:08,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:52:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 380 transitions. [2020-09-25 08:52:08,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 08:52:08,850 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:08,850 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:52:08,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:52:08,851 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:08,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:08,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1249677314, now seen corresponding path program 1 times [2020-09-25 08:52:08,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:08,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1989156858] [2020-09-25 08:52:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:08,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:09,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:09,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:09,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:09,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:09,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 08:52:09,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:09,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-09-25 08:52:09,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:09,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:09,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 08:52:09,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 08:52:09,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:09,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:09,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:09,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:09,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:09,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:09,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:09,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:09,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:09,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:09,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:52:09,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:52:09,536 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1989156858] [2020-09-25 08:52:09,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:09,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:52:09,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881236756] [2020-09-25 08:52:09,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:52:09,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:09,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:52:09,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:52:09,556 INFO L87 Difference]: Start difference. First operand 320 states and 380 transitions. Second operand 3 states. [2020-09-25 08:52:09,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:09,838 INFO L93 Difference]: Finished difference Result 578 states and 730 transitions. [2020-09-25 08:52:09,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:52:09,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-25 08:52:09,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:09,845 INFO L225 Difference]: With dead ends: 578 [2020-09-25 08:52:09,846 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 08:52:09,847 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 08:52:09,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 08:52:09,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 364. [2020-09-25 08:52:09,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-09-25 08:52:09,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 432 transitions. [2020-09-25 08:52:09,888 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 432 transitions. Word has length 158 [2020-09-25 08:52:09,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:09,889 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 432 transitions. [2020-09-25 08:52:09,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:52:09,890 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 432 transitions. [2020-09-25 08:52:09,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 08:52:09,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:09,892 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 08:52:09,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:52:09,893 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:09,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:09,893 INFO L82 PathProgramCache]: Analyzing trace with hash -288801966, now seen corresponding path program 1 times [2020-09-25 08:52:09,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:09,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823854062] [2020-09-25 08:52:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:09,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:09,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:10,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:10,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:10,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:10,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:52:10,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:10,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-09-25 08:52:10,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:10,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:10,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:10,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 08:52:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 08:52:10,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:10,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:10,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:10,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:10,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:10,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:10,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:10,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:10,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:10,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:52:10,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823854062] [2020-09-25 08:52:10,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:10,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:52:10,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865371037] [2020-09-25 08:52:10,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:52:10,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:10,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:52:10,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:52:10,742 INFO L87 Difference]: Start difference. First operand 364 states and 432 transitions. Second operand 4 states. [2020-09-25 08:52:11,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:11,186 INFO L93 Difference]: Finished difference Result 912 states and 1139 transitions. [2020-09-25 08:52:11,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:52:11,187 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2020-09-25 08:52:11,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:11,193 INFO L225 Difference]: With dead ends: 912 [2020-09-25 08:52:11,193 INFO L226 Difference]: Without dead ends: 679 [2020-09-25 08:52:11,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:52:11,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2020-09-25 08:52:11,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 367. [2020-09-25 08:52:11,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-09-25 08:52:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 435 transitions. [2020-09-25 08:52:11,218 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 435 transitions. Word has length 165 [2020-09-25 08:52:11,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:11,219 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 435 transitions. [2020-09-25 08:52:11,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:52:11,220 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 435 transitions. [2020-09-25 08:52:11,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 08:52:11,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:11,223 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:11,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:52:11,223 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:11,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:11,224 INFO L82 PathProgramCache]: Analyzing trace with hash -854962305, now seen corresponding path program 1 times [2020-09-25 08:52:11,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:11,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037823922] [2020-09-25 08:52:11,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:11,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:11,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:11,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:11,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:11,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:11,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:11,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:52:11,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:52:11,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-09-25 08:52:11,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:11,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:11,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:11,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-25 08:52:11,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 08:52:11,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 08:52:11,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:11,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:11,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:11,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:11,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:11,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:11,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:11,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:11,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:11,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:11,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:11,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:52:12,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037823922] [2020-09-25 08:52:12,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:12,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:52:12,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824749835] [2020-09-25 08:52:12,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:52:12,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:12,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:52:12,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:52:12,016 INFO L87 Difference]: Start difference. First operand 367 states and 435 transitions. Second operand 3 states. [2020-09-25 08:52:12,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:12,078 INFO L93 Difference]: Finished difference Result 826 states and 1015 transitions. [2020-09-25 08:52:12,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:52:12,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-09-25 08:52:12,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:12,083 INFO L225 Difference]: With dead ends: 826 [2020-09-25 08:52:12,083 INFO L226 Difference]: Without dead ends: 590 [2020-09-25 08:52:12,084 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 08:52:12,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2020-09-25 08:52:12,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 588. [2020-09-25 08:52:12,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 588 states. [2020-09-25 08:52:12,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 711 transitions. [2020-09-25 08:52:12,113 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 711 transitions. Word has length 178 [2020-09-25 08:52:12,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:12,114 INFO L479 AbstractCegarLoop]: Abstraction has 588 states and 711 transitions. [2020-09-25 08:52:12,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:52:12,115 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 711 transitions. [2020-09-25 08:52:12,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 08:52:12,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:12,118 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:12,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:52:12,118 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:12,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:12,119 INFO L82 PathProgramCache]: Analyzing trace with hash -958022070, now seen corresponding path program 1 times [2020-09-25 08:52:12,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:12,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824160525] [2020-09-25 08:52:12,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:12,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:12,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:12,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:12,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:12,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:12,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-25 08:52:12,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:12,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 425 [2020-09-25 08:52:12,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:12,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:12,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:12,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 08:52:12,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 08:52:12,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:12,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:12,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:12,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:12,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:12,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:12,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:12,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:12,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:12,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:12,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:52:12,647 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824160525] [2020-09-25 08:52:12,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:12,647 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:52:12,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277667454] [2020-09-25 08:52:12,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:52:12,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:12,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:52:12,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:52:12,649 INFO L87 Difference]: Start difference. First operand 588 states and 711 transitions. Second operand 3 states. [2020-09-25 08:52:12,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:12,866 INFO L93 Difference]: Finished difference Result 983 states and 1215 transitions. [2020-09-25 08:52:12,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:52:12,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-09-25 08:52:12,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:12,871 INFO L225 Difference]: With dead ends: 983 [2020-09-25 08:52:12,872 INFO L226 Difference]: Without dead ends: 747 [2020-09-25 08:52:12,873 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 08:52:12,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2020-09-25 08:52:12,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 608. [2020-09-25 08:52:12,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-09-25 08:52:12,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 741 transitions. [2020-09-25 08:52:12,900 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 741 transitions. Word has length 179 [2020-09-25 08:52:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:12,900 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 741 transitions. [2020-09-25 08:52:12,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:52:12,901 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 741 transitions. [2020-09-25 08:52:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-25 08:52:12,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:12,904 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:12,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:52:12,904 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:12,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:12,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1571585926, now seen corresponding path program 1 times [2020-09-25 08:52:12,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:12,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204262227] [2020-09-25 08:52:12,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:12,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:12,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:13,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:13,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:13,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:14,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:14,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 08:52:14,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:52:14,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1101 [2020-09-25 08:52:14,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:14,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 08:52:14,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 08:52:14,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 08:52:14,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:14,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:14,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:14,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:14,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:14,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:14,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:52:14,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:14,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:14,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:14,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:14,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 08:52:14,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204262227] [2020-09-25 08:52:14,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:14,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:52:14,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158507781] [2020-09-25 08:52:14,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:52:14,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:14,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:52:14,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:52:14,099 INFO L87 Difference]: Start difference. First operand 608 states and 741 transitions. Second operand 4 states. [2020-09-25 08:52:14,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:14,631 INFO L93 Difference]: Finished difference Result 1463 states and 1836 transitions. [2020-09-25 08:52:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:52:14,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2020-09-25 08:52:14,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:14,641 INFO L225 Difference]: With dead ends: 1463 [2020-09-25 08:52:14,642 INFO L226 Difference]: Without dead ends: 1207 [2020-09-25 08:52:14,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:52:14,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2020-09-25 08:52:14,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 611. [2020-09-25 08:52:14,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-09-25 08:52:14,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 744 transitions. [2020-09-25 08:52:14,703 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 744 transitions. Word has length 186 [2020-09-25 08:52:14,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:14,705 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 744 transitions. [2020-09-25 08:52:14,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:52:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 744 transitions. [2020-09-25 08:52:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-25 08:52:14,712 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:14,713 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:52:14,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 08:52:14,713 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:14,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:14,714 INFO L82 PathProgramCache]: Analyzing trace with hash 348829834, now seen corresponding path program 1 times [2020-09-25 08:52:14,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:14,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160508617] [2020-09-25 08:52:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:14,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:14,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:14,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:14,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:14,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:15,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:15,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 08:52:15,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:52:15,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-09-25 08:52:15,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:15,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:15,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 08:52:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-25 08:52:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:15,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:15,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:15,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:15,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:15,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:52:15,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:15,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:15,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:15,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:52:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:52:15,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160508617] [2020-09-25 08:52:15,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:15,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:52:15,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366118329] [2020-09-25 08:52:15,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:52:15,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:15,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:52:15,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:52:15,581 INFO L87 Difference]: Start difference. First operand 611 states and 744 transitions. Second operand 3 states. [2020-09-25 08:52:15,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:15,884 INFO L93 Difference]: Finished difference Result 1312 states and 1668 transitions. [2020-09-25 08:52:15,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:52:15,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2020-09-25 08:52:15,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:15,892 INFO L225 Difference]: With dead ends: 1312 [2020-09-25 08:52:15,892 INFO L226 Difference]: Without dead ends: 780 [2020-09-25 08:52:15,894 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 08:52:15,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-09-25 08:52:15,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 744. [2020-09-25 08:52:15,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-09-25 08:52:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 955 transitions. [2020-09-25 08:52:15,931 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 955 transitions. Word has length 196 [2020-09-25 08:52:15,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:15,932 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 955 transitions. [2020-09-25 08:52:15,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:52:15,933 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 955 transitions. [2020-09-25 08:52:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 08:52:15,938 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:15,939 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:15,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 08:52:15,939 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:15,940 INFO L82 PathProgramCache]: Analyzing trace with hash -782218630, now seen corresponding path program 1 times [2020-09-25 08:52:15,940 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:15,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411572529] [2020-09-25 08:52:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:15,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:16,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 08:52:16,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:52:16,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 08:52:16,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:16,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:16,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:52:16,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 08:52:16,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 08:52:16,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:16,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:52:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:52:16,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:52:16,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:52:16,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:52:16,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:52:16,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:52:16,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:52:16,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:52:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:52:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:52:16,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:52:16,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:52:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-25 08:52:16,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411572529] [2020-09-25 08:52:16,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:52:16,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:52:16,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755059039] [2020-09-25 08:52:16,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:52:16,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:52:16,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:52:16,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:52:16,317 INFO L87 Difference]: Start difference. First operand 744 states and 955 transitions. Second operand 3 states. [2020-09-25 08:52:16,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:52:16,526 INFO L93 Difference]: Finished difference Result 1459 states and 1884 transitions. [2020-09-25 08:52:16,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:52:16,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-09-25 08:52:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:52:16,532 INFO L225 Difference]: With dead ends: 1459 [2020-09-25 08:52:16,532 INFO L226 Difference]: Without dead ends: 843 [2020-09-25 08:52:16,534 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 08:52:16,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2020-09-25 08:52:16,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 741. [2020-09-25 08:52:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2020-09-25 08:52:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 946 transitions. [2020-09-25 08:52:16,559 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 946 transitions. Word has length 201 [2020-09-25 08:52:16,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:52:16,559 INFO L479 AbstractCegarLoop]: Abstraction has 741 states and 946 transitions. [2020-09-25 08:52:16,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:52:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 946 transitions. [2020-09-25 08:52:16,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 08:52:16,563 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:52:16,563 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:16,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 08:52:16,563 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:52:16,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:52:16,564 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-25 08:52:16,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:52:16,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433763285] [2020-09-25 08:52:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:52:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:52:16,604 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:52:16,605 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:52:16,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 08:52:16,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:52:16 BoogieIcfgContainer [2020-09-25 08:52:16,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:52:16,671 INFO L168 Benchmark]: Toolchain (without parser) took 10971.61 ms. Allocated memory was 137.9 MB in the beginning and 386.9 MB in the end (delta: 249.0 MB). Free memory was 100.2 MB in the beginning and 290.6 MB in the end (delta: -190.4 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB. [2020-09-25 08:52:16,672 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 08:52:16,673 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.69 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 177.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-25 08:52:16,674 INFO L168 Benchmark]: Boogie Preprocessor took 61.24 ms. Allocated memory is still 201.9 MB. Free memory was 177.9 MB in the beginning and 174.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-09-25 08:52:16,674 INFO L168 Benchmark]: RCFGBuilder took 956.52 ms. Allocated memory is still 201.9 MB. Free memory was 174.8 MB in the beginning and 114.8 MB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. [2020-09-25 08:52:16,677 INFO L168 Benchmark]: TraceAbstraction took 9354.40 ms. Allocated memory was 201.9 MB in the beginning and 386.9 MB in the end (delta: 185.1 MB). Free memory was 114.1 MB in the beginning and 290.6 MB in the end (delta: -176.6 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2020-09-25 08:52:16,688 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 588.69 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.5 MB in the beginning and 177.9 MB in the end (delta: -78.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.24 ms. Allocated memory is still 201.9 MB. Free memory was 177.9 MB in the beginning and 174.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 956.52 ms. Allocated memory is still 201.9 MB. Free memory was 174.8 MB in the beginning and 114.8 MB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9354.40 ms. Allocated memory was 201.9 MB in the beginning and 386.9 MB in the end (delta: 185.1 MB). Free memory was 114.1 MB in the beginning and 290.6 MB in the end (delta: -176.6 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.2s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3396 SDtfs, 1592 SDslu, 2912 SDs, 0 SdLazy, 1192 SolverSat, 273 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=744occurred 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, 1226 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1608 NumberOfCodeBlocks, 1608 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1397 ConstructedInterpolants, 0 QuantifiedInterpolants, 325009 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 132/132 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...