/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:21:41,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:21:41,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:21:41,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:21:41,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:21:41,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:21:41,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:21:41,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:21:41,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:21:41,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:21:41,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:21:41,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:21:41,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:21:41,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:21:41,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:21:41,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:21:41,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:21:41,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:21:41,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:21:41,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:21:41,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:21:41,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:21:41,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:21:41,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:21:41,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:21:41,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:21:41,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:21:41,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:21:41,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:21:41,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:21:41,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:21:41,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:21:41,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:21:41,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:21:41,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:21:41,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:21:41,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:21:41,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:21:41,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:21:41,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:21:41,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:21:41,355 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:21:41,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:21:41,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:21:41,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:21:41,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:21:41,405 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:21:41,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:21:41,406 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:21:41,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:21:41,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:21:41,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:21:41,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:21:41,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:21:41,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:21:41,409 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:21:41,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:21:41,409 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:21:41,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:21:41,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:21:41,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:21:41,410 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:21:41,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:21:41,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:41,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:21:41,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:21:41,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:21:41,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:21:41,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:21:41,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:21:41,412 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:21:41,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:21:41,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:21:41,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:21:41,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:21:41,917 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:21:41,918 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:21:41,919 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-25 04:21:41,991 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be00a99d3/a484c9be53ee4c59abf1a984156f163b/FLAGbe0334edf [2020-09-25 04:21:42,537 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:21:42,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-25 04:21:42,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be00a99d3/a484c9be53ee4c59abf1a984156f163b/FLAGbe0334edf [2020-09-25 04:21:42,833 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be00a99d3/a484c9be53ee4c59abf1a984156f163b [2020-09-25 04:21:42,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:21:42,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:21:42,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:42,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:21:42,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:21:42,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:42" (1/1) ... [2020-09-25 04:21:42,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ba5b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:42, skipping insertion in model container [2020-09-25 04:21:42,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:21:42" (1/1) ... [2020-09-25 04:21:42,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:21:42,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:21:43,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:43,221 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:21:43,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:21:43,504 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:21:43,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43 WrapperNode [2020-09-25 04:21:43,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:21:43,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:21:43,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:21:43,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:21:43,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (1/1) ... [2020-09-25 04:21:43,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (1/1) ... [2020-09-25 04:21:43,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (1/1) ... [2020-09-25 04:21:43,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (1/1) ... [2020-09-25 04:21:43,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (1/1) ... [2020-09-25 04:21:43,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (1/1) ... [2020-09-25 04:21:43,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (1/1) ... [2020-09-25 04:21:43,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:21:43,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:21:43,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:21:43,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:21:43,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:21:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:21:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:21:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 04:21:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:21:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:21:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 04:21:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:21:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 04:21:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 04:21:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 04:21:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:21:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:21:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:21:43,866 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 04:21:44,510 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 04:21:44,510 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 04:21:44,537 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:21:44,538 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 04:21:44,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:44 BoogieIcfgContainer [2020-09-25 04:21:44,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:21:44,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:21:44,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:21:44,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:21:44,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:21:42" (1/3) ... [2020-09-25 04:21:44,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4752aabe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:44, skipping insertion in model container [2020-09-25 04:21:44,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:21:43" (2/3) ... [2020-09-25 04:21:44,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4752aabe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:21:44, skipping insertion in model container [2020-09-25 04:21:44,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:21:44" (3/3) ... [2020-09-25 04:21:44,557 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-2.c [2020-09-25 04:21:44,568 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:21:44,579 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:21:44,602 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:21:44,637 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:21:44,637 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:21:44,637 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:21:44,637 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:21:44,638 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:21:44,638 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:21:44,638 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:21:44,638 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:21:44,668 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states. [2020-09-25 04:21:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 04:21:44,687 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:44,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:44,689 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:44,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:44,696 INFO L82 PathProgramCache]: Analyzing trace with hash 44117518, now seen corresponding path program 1 times [2020-09-25 04:21:44,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:44,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1927517156] [2020-09-25 04:21:44,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:45,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:45,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:46,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:46,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 04:21:46,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:21:46,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1050 [2020-09-25 04:21:46,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:46,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:46,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:46,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-09-25 04:21:46,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 04:21:46,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:21:46,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:46,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:46,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:46,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:46,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:46,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:46,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:46,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:46,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:46,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:46,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:46,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:21:46,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1927517156] [2020-09-25 04:21:46,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:46,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:46,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588718926] [2020-09-25 04:21:46,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:46,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:46,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:46,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:46,276 INFO L87 Difference]: Start difference. First operand 414 states. Second operand 3 states. [2020-09-25 04:21:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:46,474 INFO L93 Difference]: Finished difference Result 900 states and 1157 transitions. [2020-09-25 04:21:46,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:46,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 04:21:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:46,500 INFO L225 Difference]: With dead ends: 900 [2020-09-25 04:21:46,501 INFO L226 Difference]: Without dead ends: 574 [2020-09-25 04:21:46,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:46,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2020-09-25 04:21:46,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2020-09-25 04:21:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-09-25 04:21:46,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 680 transitions. [2020-09-25 04:21:46,608 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 680 transitions. Word has length 181 [2020-09-25 04:21:46,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:46,609 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 680 transitions. [2020-09-25 04:21:46,609 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:46,610 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 680 transitions. [2020-09-25 04:21:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 04:21:46,616 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:46,616 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:46,617 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:21:46,617 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:46,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:46,617 INFO L82 PathProgramCache]: Analyzing trace with hash 157739509, now seen corresponding path program 1 times [2020-09-25 04:21:46,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:46,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541626201] [2020-09-25 04:21:46,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:46,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:46,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:47,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:49,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 04:21:49,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:21:49,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2373 [2020-09-25 04:21:49,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:49,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:49,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 04:21:49,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 04:21:49,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:21:49,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:49,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:49,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:49,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:49,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:49,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:49,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:49,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:49,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:49,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:21:49,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541626201] [2020-09-25 04:21:49,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:49,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:49,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129804380] [2020-09-25 04:21:49,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:49,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:49,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:49,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:49,167 INFO L87 Difference]: Start difference. First operand 574 states and 680 transitions. Second operand 3 states. [2020-09-25 04:21:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:49,260 INFO L93 Difference]: Finished difference Result 985 states and 1198 transitions. [2020-09-25 04:21:49,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:49,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-09-25 04:21:49,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:49,266 INFO L225 Difference]: With dead ends: 985 [2020-09-25 04:21:49,267 INFO L226 Difference]: Without dead ends: 776 [2020-09-25 04:21:49,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2020-09-25 04:21:49,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2020-09-25 04:21:49,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 776 states. [2020-09-25 04:21:49,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 932 transitions. [2020-09-25 04:21:49,304 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 932 transitions. Word has length 203 [2020-09-25 04:21:49,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:49,305 INFO L479 AbstractCegarLoop]: Abstraction has 776 states and 932 transitions. [2020-09-25 04:21:49,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:49,305 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 932 transitions. [2020-09-25 04:21:49,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 04:21:49,310 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:49,310 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:49,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:21:49,311 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:49,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:49,311 INFO L82 PathProgramCache]: Analyzing trace with hash -629663792, now seen corresponding path program 1 times [2020-09-25 04:21:49,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:49,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708173888] [2020-09-25 04:21:49,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:49,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:49,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 04:21:51,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:21:51,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1765 [2020-09-25 04:21:51,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-25 04:21:51,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 04:21:51,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:51,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:51,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:51,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:21:51,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:51,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:51,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:51,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:51,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 04:21:51,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708173888] [2020-09-25 04:21:51,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:51,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:51,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243409352] [2020-09-25 04:21:51,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:51,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:51,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:51,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:51,210 INFO L87 Difference]: Start difference. First operand 776 states and 932 transitions. Second operand 3 states. [2020-09-25 04:21:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:51,296 INFO L93 Difference]: Finished difference Result 1389 states and 1702 transitions. [2020-09-25 04:21:51,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:51,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 04:21:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:51,304 INFO L225 Difference]: With dead ends: 1389 [2020-09-25 04:21:51,304 INFO L226 Difference]: Without dead ends: 978 [2020-09-25 04:21:51,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:51,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2020-09-25 04:21:51,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2020-09-25 04:21:51,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2020-09-25 04:21:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1185 transitions. [2020-09-25 04:21:51,351 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1185 transitions. Word has length 224 [2020-09-25 04:21:51,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:51,353 INFO L479 AbstractCegarLoop]: Abstraction has 978 states and 1185 transitions. [2020-09-25 04:21:51,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1185 transitions. [2020-09-25 04:21:51,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-09-25 04:21:51,361 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:51,362 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:51,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:21:51,363 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:51,363 INFO L82 PathProgramCache]: Analyzing trace with hash -649785374, now seen corresponding path program 1 times [2020-09-25 04:21:51,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:51,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354065602] [2020-09-25 04:21:51,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:51,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:51,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 257 [2020-09-25 04:21:54,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 04:21:54,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3369 [2020-09-25 04:21:54,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:54,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-09-25 04:21:54,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 04:21:54,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:54,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:54,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:54,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:54,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:54,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:54,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:54,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:54,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:54,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:54,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:54,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:54,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:21:54,952 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 04:21:54,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354065602] [2020-09-25 04:21:54,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:54,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:54,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585457352] [2020-09-25 04:21:54,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:54,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:54,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:54,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:54,954 INFO L87 Difference]: Start difference. First operand 978 states and 1185 transitions. Second operand 3 states. [2020-09-25 04:21:55,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:55,039 INFO L93 Difference]: Finished difference Result 1793 states and 2208 transitions. [2020-09-25 04:21:55,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:55,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-09-25 04:21:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:55,049 INFO L225 Difference]: With dead ends: 1793 [2020-09-25 04:21:55,049 INFO L226 Difference]: Without dead ends: 1180 [2020-09-25 04:21:55,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:55,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2020-09-25 04:21:55,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1180. [2020-09-25 04:21:55,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1180 states. [2020-09-25 04:21:55,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1439 transitions. [2020-09-25 04:21:55,089 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1439 transitions. Word has length 248 [2020-09-25 04:21:55,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:55,089 INFO L479 AbstractCegarLoop]: Abstraction has 1180 states and 1439 transitions. [2020-09-25 04:21:55,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:55,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1439 transitions. [2020-09-25 04:21:55,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-25 04:21:55,096 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:55,096 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:55,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:21:55,097 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:55,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:55,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1398555413, now seen corresponding path program 1 times [2020-09-25 04:21:55,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:55,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678279430] [2020-09-25 04:21:55,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:55,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:55,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 04:21:56,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:21:56,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1549 [2020-09-25 04:21:56,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:21:56,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 04:21:56,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 04:21:56,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:56,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:56,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:56,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:56,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:56,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:56,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:56,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:56,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:56,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 04:21:56,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678279430] [2020-09-25 04:21:56,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:56,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:21:56,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939851049] [2020-09-25 04:21:56,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:21:56,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:56,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:21:56,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:56,782 INFO L87 Difference]: Start difference. First operand 1180 states and 1439 transitions. Second operand 3 states. [2020-09-25 04:21:57,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:57,044 INFO L93 Difference]: Finished difference Result 2537 states and 3241 transitions. [2020-09-25 04:21:57,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:21:57,045 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-09-25 04:21:57,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:57,053 INFO L225 Difference]: With dead ends: 2537 [2020-09-25 04:21:57,053 INFO L226 Difference]: Without dead ends: 1515 [2020-09-25 04:21:57,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:21:57,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-09-25 04:21:57,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1400. [2020-09-25 04:21:57,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1400 states. [2020-09-25 04:21:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 1704 transitions. [2020-09-25 04:21:57,102 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 1704 transitions. Word has length 273 [2020-09-25 04:21:57,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:57,103 INFO L479 AbstractCegarLoop]: Abstraction has 1400 states and 1704 transitions. [2020-09-25 04:21:57,103 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:21:57,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 1704 transitions. [2020-09-25 04:21:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-25 04:21:57,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:57,111 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:57,111 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:21:57,111 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:57,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:57,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1035579061, now seen corresponding path program 1 times [2020-09-25 04:21:57,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:57,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502863549] [2020-09-25 04:21:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:57,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:57,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:58,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-09-25 04:21:58,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:21:58,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1297 [2020-09-25 04:21:58,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:58,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:21:58,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 04:21:58,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:58,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:58,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:58,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:58,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:58,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:58,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:58,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:58,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 04:21:58,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502863549] [2020-09-25 04:21:58,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:21:58,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:21:58,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132363663] [2020-09-25 04:21:58,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:21:58,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:58,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:21:58,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:21:58,685 INFO L87 Difference]: Start difference. First operand 1400 states and 1704 transitions. Second operand 6 states. [2020-09-25 04:21:59,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:59,025 INFO L93 Difference]: Finished difference Result 2773 states and 3437 transitions. [2020-09-25 04:21:59,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:21:59,026 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 273 [2020-09-25 04:21:59,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:59,038 INFO L225 Difference]: With dead ends: 2773 [2020-09-25 04:21:59,038 INFO L226 Difference]: Without dead ends: 1536 [2020-09-25 04:21:59,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:21:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2020-09-25 04:21:59,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1490. [2020-09-25 04:21:59,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-09-25 04:21:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1844 transitions. [2020-09-25 04:21:59,136 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1844 transitions. Word has length 273 [2020-09-25 04:21:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:59,137 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1844 transitions. [2020-09-25 04:21:59,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:21:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1844 transitions. [2020-09-25 04:21:59,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-25 04:21:59,149 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:59,150 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:59,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:21:59,150 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:59,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:59,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1988234171, now seen corresponding path program 1 times [2020-09-25 04:21:59,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:59,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2045091675] [2020-09-25 04:21:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:59,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:59,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-09-25 04:22:00,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:00,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-09-25 04:22:00,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:00,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:22:00,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-09-25 04:22:00,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:00,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:00,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:00,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:00,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:22:00,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:00,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:00,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:00,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 04:22:00,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2045091675] [2020-09-25 04:22:00,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:00,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:22:00,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058483450] [2020-09-25 04:22:00,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:22:00,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:00,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:22:00,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:22:00,476 INFO L87 Difference]: Start difference. First operand 1490 states and 1844 transitions. Second operand 6 states. [2020-09-25 04:22:00,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:00,824 INFO L93 Difference]: Finished difference Result 2956 states and 3700 transitions. [2020-09-25 04:22:00,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:22:00,824 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 274 [2020-09-25 04:22:00,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:00,833 INFO L225 Difference]: With dead ends: 2956 [2020-09-25 04:22:00,833 INFO L226 Difference]: Without dead ends: 1601 [2020-09-25 04:22:00,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:22:00,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2020-09-25 04:22:00,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1496. [2020-09-25 04:22:00,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-09-25 04:22:00,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1852 transitions. [2020-09-25 04:22:00,918 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1852 transitions. Word has length 274 [2020-09-25 04:22:00,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:00,919 INFO L479 AbstractCegarLoop]: Abstraction has 1496 states and 1852 transitions. [2020-09-25 04:22:00,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:22:00,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1852 transitions. [2020-09-25 04:22:00,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-25 04:22:00,926 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:00,926 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:00,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:22:00,927 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:00,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:00,927 INFO L82 PathProgramCache]: Analyzing trace with hash -92086631, now seen corresponding path program 1 times [2020-09-25 04:22:00,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:00,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1822461208] [2020-09-25 04:22:00,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:00,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:01,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:02,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-09-25 04:22:02,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1247 [2020-09-25 04:22:02,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:02,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:02,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:22:02,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-25 04:22:02,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:02,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:02,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:02,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:02,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:02,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:02,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:02,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:02,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:02,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:02,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:02,451 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 04:22:02,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1822461208] [2020-09-25 04:22:02,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:02,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:22:02,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964329474] [2020-09-25 04:22:02,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:22:02,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:02,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:22:02,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:22:02,455 INFO L87 Difference]: Start difference. First operand 1496 states and 1852 transitions. Second operand 6 states. [2020-09-25 04:22:02,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:02,706 INFO L93 Difference]: Finished difference Result 3008 states and 3759 transitions. [2020-09-25 04:22:02,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:22:02,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 295 [2020-09-25 04:22:02,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:02,716 INFO L225 Difference]: With dead ends: 3008 [2020-09-25 04:22:02,716 INFO L226 Difference]: Without dead ends: 1681 [2020-09-25 04:22:02,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:22:02,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2020-09-25 04:22:02,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 1566. [2020-09-25 04:22:02,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1566 states. [2020-09-25 04:22:02,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 1941 transitions. [2020-09-25 04:22:02,775 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 1941 transitions. Word has length 295 [2020-09-25 04:22:02,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:02,776 INFO L479 AbstractCegarLoop]: Abstraction has 1566 states and 1941 transitions. [2020-09-25 04:22:02,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:22:02,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 1941 transitions. [2020-09-25 04:22:02,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-09-25 04:22:02,784 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:02,784 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:02,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:22:02,785 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:02,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:02,785 INFO L82 PathProgramCache]: Analyzing trace with hash -652006092, now seen corresponding path program 1 times [2020-09-25 04:22:02,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:02,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1081097568] [2020-09-25 04:22:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:02,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:03,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-09-25 04:22:03,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:22:03,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 682 [2020-09-25 04:22:03,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:03,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:22:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 04:22:03,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-09-25 04:22:03,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:03,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:22:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:22:03,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:22:03,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:22:03,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:22:03,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:22:03,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:22:03,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:22:03,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:22:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:22:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:22:03,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:22:03,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:22:03,743 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 04:22:03,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1081097568] [2020-09-25 04:22:03,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:22:03,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:22:03,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691022764] [2020-09-25 04:22:03,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:22:03,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:22:03,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:22:03,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:22:03,750 INFO L87 Difference]: Start difference. First operand 1566 states and 1941 transitions. Second operand 6 states. [2020-09-25 04:22:04,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:22:04,080 INFO L93 Difference]: Finished difference Result 3228 states and 4128 transitions. [2020-09-25 04:22:04,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:22:04,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 297 [2020-09-25 04:22:04,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:22:04,090 INFO L225 Difference]: With dead ends: 3228 [2020-09-25 04:22:04,091 INFO L226 Difference]: Without dead ends: 1828 [2020-09-25 04:22:04,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 04:22:04,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2020-09-25 04:22:04,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1573. [2020-09-25 04:22:04,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1573 states. [2020-09-25 04:22:04,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 1942 transitions. [2020-09-25 04:22:04,148 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 1942 transitions. Word has length 297 [2020-09-25 04:22:04,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:22:04,148 INFO L479 AbstractCegarLoop]: Abstraction has 1573 states and 1942 transitions. [2020-09-25 04:22:04,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:22:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 1942 transitions. [2020-09-25 04:22:04,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-09-25 04:22:04,155 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:22:04,155 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:22:04,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:22:04,156 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:22:04,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:22:04,156 INFO L82 PathProgramCache]: Analyzing trace with hash -638739787, now seen corresponding path program 1 times [2020-09-25 04:22:04,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:22:04,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32638727] [2020-09-25 04:22:04,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:22:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:22:04,211 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:22:04,211 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:22:04,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:22:04,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:22:04 BoogieIcfgContainer [2020-09-25 04:22:04,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:22:04,284 INFO L168 Benchmark]: Toolchain (without parser) took 21434.54 ms. Allocated memory was 147.8 MB in the beginning and 454.0 MB in the end (delta: 306.2 MB). Free memory was 102.2 MB in the beginning and 306.9 MB in the end (delta: -204.7 MB). Peak memory consumption was 101.5 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:04,285 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 04:22:04,286 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.79 ms. Allocated memory was 147.8 MB in the beginning and 208.7 MB in the end (delta: 60.8 MB). Free memory was 101.6 MB in the beginning and 184.0 MB in the end (delta: -82.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:04,290 INFO L168 Benchmark]: Boogie Preprocessor took 65.77 ms. Allocated memory is still 208.7 MB. Free memory was 184.0 MB in the beginning and 181.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:04,291 INFO L168 Benchmark]: RCFGBuilder took 974.82 ms. Allocated memory is still 208.7 MB. Free memory was 181.3 MB in the beginning and 113.5 MB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:04,295 INFO L168 Benchmark]: TraceAbstraction took 19730.64 ms. Allocated memory was 208.7 MB in the beginning and 454.0 MB in the end (delta: 245.4 MB). Free memory was 112.8 MB in the beginning and 306.9 MB in the end (delta: -194.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. [2020-09-25 04:22:04,304 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 654.79 ms. Allocated memory was 147.8 MB in the beginning and 208.7 MB in the end (delta: 60.8 MB). Free memory was 101.6 MB in the beginning and 184.0 MB in the end (delta: -82.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.77 ms. Allocated memory is still 208.7 MB. Free memory was 184.0 MB in the beginning and 181.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 974.82 ms. Allocated memory is still 208.7 MB. Free memory was 181.3 MB in the beginning and 113.5 MB in the end (delta: 67.8 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19730.64 ms. Allocated memory was 208.7 MB in the beginning and 454.0 MB in the end (delta: 245.4 MB). Free memory was 112.8 MB in the beginning and 306.9 MB in the end (delta: -194.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 573]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L578] int s ; [L582] s = 12292 [L583] CALL ssl3_connect(s) [L12] int s__info_callback = __VERIFIER_nondet_int() ; [L13] int s__in_handshake = __VERIFIER_nondet_int() ; [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int() ; [L18] int s__type ; [L19] int s__init_num ; [L20] int s__bbio = __VERIFIER_nondet_int() ; [L21] int s__wbio = __VERIFIER_nondet_int() ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int s__rwstate ; [L24] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L25] int s__debug = __VERIFIER_nondet_int() ; [L26] int s__shutdown ; [L27] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L32] int s__s3__change_cipher_spec ; [L33] int s__s3__flags = __VERIFIER_nondet_int() ; [L34] int s__s3__delay_buf_pop_ret ; [L35] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int s__session__compress_meth ; [L44] int buf ; [L45] unsigned long tmp ; [L46] unsigned long l ; [L47] int num1 = __VERIFIER_nondet_int() ; [L48] int cb ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int tmp___0 ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 = __VERIFIER_nondet_int() ; [L61] int tmp___8 = __VERIFIER_nondet_int() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int blastFlag ; [L64] int __cil_tmp55 ; [L65] void *__cil_tmp56 ; [L66] unsigned long __cil_tmp57 ; [L67] unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ; [L68] void *__cil_tmp59 ; [L69] unsigned long __cil_tmp60 ; [L70] unsigned long __cil_tmp61 ; [L71] unsigned long __cil_tmp62 ; [L72] unsigned long __cil_tmp63 ; [L73] unsigned long __cil_tmp64 ; [L74] long __cil_tmp65 = __VERIFIER_nondet_long() ; [L75] long __cil_tmp66 ; [L76] long __cil_tmp67 ; [L77] long __cil_tmp68 ; [L78] long __cil_tmp69 ; [L79] long __cil_tmp70 = __VERIFIER_nondet_long() ; [L80] long __cil_tmp71 ; [L81] long __cil_tmp72 ; [L82] long __cil_tmp73 ; [L83] long __cil_tmp74 ; [L87] s__state = initial_state [L88] blastFlag = 0 [L89] tmp = __VERIFIER_nondet_int() [L90] cb = 0 [L91] ret = -1 [L92] skip = 0 [L93] tmp___0 = 0 [L94] COND TRUE s__info_callback != 0 [L95] cb = s__info_callback [L101] s__in_handshake ++ [L102] COND FALSE !(tmp___1 + 12288) [L108] COND TRUE 1 [L110] state = s__state [L111] COND TRUE s__state == 12292 [L213] s__new_session = 1 [L214] s__state = 4096 [L215] s__ctx__stats__sess_connect_renegotiate ++ [L220] s__server = 0 [L221] COND TRUE cb != 0 [L225] __cil_tmp55 = s__version + 65280 [L226] COND FALSE !(__cil_tmp55 != 768) [L231] s__type = 4096 [L233] __cil_tmp56 = (void *)0 [L234] __cil_tmp57 = (unsigned long )__cil_tmp56 [L235] __cil_tmp58 = (unsigned long )s__init_buf___0 [L236] COND FALSE !(__cil_tmp58 == __cil_tmp57) [L254] COND FALSE !(! tmp___4) [L258] COND FALSE !(! tmp___5) [L262] s__state = 4368 [L263] s__ctx__stats__sess_connect ++ [L264] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND TRUE s__state == 4368 [L268] s__shutdown = 0 [L269] ret = __VERIFIER_nondet_int() [L270] COND TRUE blastFlag == 0 [L271] blastFlag = 1 [L273] COND FALSE !(ret <= 0) [L276] s__state = 4384 [L277] s__init_num = 0 [L279] __cil_tmp62 = (unsigned long )s__wbio [L280] __cil_tmp63 = (unsigned long )s__bbio [L281] COND TRUE __cil_tmp63 != __cil_tmp62 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND TRUE s__state == 4384 [L288] ret = __VERIFIER_nondet_int() [L289] COND TRUE blastFlag == 1 [L290] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L299] COND FALSE !(\read(s__hit)) [L302] s__state = 4400 [L304] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND TRUE s__state == 4400 [L309] __cil_tmp64 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L310] COND FALSE !(__cil_tmp64 + 256UL) [L313] ret = __VERIFIER_nondet_int() [L314] COND TRUE blastFlag == 2 [L315] blastFlag = 3 [L317] COND FALSE !(ret <= 0) [L322] s__state = 4416 [L323] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND TRUE s__state == 4416 [L327] ret = __VERIFIER_nondet_int() [L328] COND TRUE blastFlag == 3 [L329] blastFlag = 4 [L331] COND FALSE !(ret <= 0) [L334] s__state = 4432 [L335] s__init_num = 0 [L336] COND FALSE !(! tmp___6) [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND FALSE !(s__state == 4416) [L147] COND FALSE !(s__state == 4417) [L150] COND TRUE s__state == 4432 [L343] ret = __VERIFIER_nondet_int() [L344] COND TRUE blastFlag == 4 [L573] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 414 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.5s, OverallIterations: 10, TraceHistogramMax: 6, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3671 SDtfs, 5201 SDslu, 4322 SDs, 0 SdLazy, 857 SolverSat, 184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1573occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 636 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.3s InterpolantComputationTime, 2567 NumberOfCodeBlocks, 2567 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2259 ConstructedInterpolants, 0 QuantifiedInterpolants, 1091055 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 728/728 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...