/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:01:19,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:01:19,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:01:19,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:01:19,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:01:19,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:01:19,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:01:19,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:01:19,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:01:19,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:01:19,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:01:19,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:01:19,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:01:19,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:01:19,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:01:19,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:01:19,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:01:19,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:01:19,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:01:19,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:01:19,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:01:19,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:01:19,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:01:19,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:01:19,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:01:19,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:01:19,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:01:19,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:01:19,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:01:19,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 17:01:19,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 17:01:19,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 17:01:19,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 17:01:19,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 17:01:19,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 17:01:19,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 17:01:19,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 17:01:19,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 17:01:19,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:01:19,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:01:19,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:01:19,381 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 [2020-09-24 17:01:19,432 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:01:19,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:01:19,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:01:19,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:01:19,436 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:01:19,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:01:19,437 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:01:19,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:01:19,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:01:19,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:01:19,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:01:19,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:01:19,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:01:19,440 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:01:19,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:01:19,440 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:01:19,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:01:19,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:01:19,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:01:19,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:01:19,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:01:19,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:01:19,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:01:19,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:01:19,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:01:19,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:01:19,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:01:19,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:01:19,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:01:19,443 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;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;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;log-additional-information=true; [2020-09-24 17:01:19,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:01:19,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:01:19,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:01:19,993 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:01:19,994 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:01:19,995 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-24 17:01:20,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15ab3ef76/b12a7d31c3634890b6c2c0a37bef97a5/FLAG4f553b96d [2020-09-24 17:01:20,647 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:01:20,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-24 17:01:20,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15ab3ef76/b12a7d31c3634890b6c2c0a37bef97a5/FLAG4f553b96d [2020-09-24 17:01:20,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/15ab3ef76/b12a7d31c3634890b6c2c0a37bef97a5 [2020-09-24 17:01:20,983 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:01:20,989 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:01:20,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:01:20,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:01:20,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:01:20,996 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:01:20" (1/1) ... [2020-09-24 17:01:21,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d691b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:20, skipping insertion in model container [2020-09-24 17:01:21,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:01:20" (1/1) ... [2020-09-24 17:01:21,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:01:21,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:01:21,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:01:21,370 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:01:21,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:01:21,525 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:01:21,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21 WrapperNode [2020-09-24 17:01:21,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:01:21,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:01:21,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:01:21,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:01:21,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (1/1) ... [2020-09-24 17:01:21,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (1/1) ... [2020-09-24 17:01:21,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (1/1) ... [2020-09-24 17:01:21,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (1/1) ... [2020-09-24 17:01:21,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (1/1) ... [2020-09-24 17:01:21,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (1/1) ... [2020-09-24 17:01:21,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (1/1) ... [2020-09-24 17:01:21,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:01:21,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:01:21,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:01:21,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:01:21,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (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 [2020-09-24 17:01:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:01:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:01:21,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 17:01:21,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:01:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:01:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 17:01:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-24 17:01:21,688 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 17:01:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:01:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:01:21,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:01:21,838 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 17:01:22,505 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-24 17:01:22,505 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-24 17:01:22,530 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:01:22,531 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 17:01:22,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:01:22 BoogieIcfgContainer [2020-09-24 17:01:22,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:01:22,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:01:22,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:01:22,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:01:22,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:01:20" (1/3) ... [2020-09-24 17:01:22,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67276d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:01:22, skipping insertion in model container [2020-09-24 17:01:22,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:01:21" (2/3) ... [2020-09-24 17:01:22,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67276d22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:01:22, skipping insertion in model container [2020-09-24 17:01:22,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:01:22" (3/3) ... [2020-09-24 17:01:22,549 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-24 17:01:22,560 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:01:22,571 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:01:22,593 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:01:22,626 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:01:22,626 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:01:22,627 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:01:22,627 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:01:22,627 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:01:22,627 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:01:22,627 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:01:22,627 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:01:22,655 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-24 17:01:22,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 17:01:22,672 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:22,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:01:22,674 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:22,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:22,681 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-24 17:01:22,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:22,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2060674838] [2020-09-24 17:01:22,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:23,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:23,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:23,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:23,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-24 17:01:23,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:01:23,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-09-24 17:01:23,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:01:23,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-24 17:01:23,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:01:23,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:01:23,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:01:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:23,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:23,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:23,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:01:23,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:23,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:01:23,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:01:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:01:23,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:01:23,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:01:23,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2060674838] [2020-09-24 17:01:23,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:01:23,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:01:23,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822572929] [2020-09-24 17:01:23,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:01:23,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:01:23,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:01:23,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:01:23,557 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-24 17:01:23,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:01:23,946 INFO L93 Difference]: Finished difference Result 635 states and 851 transitions. [2020-09-24 17:01:23,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:01:23,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 17:01:23,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:01:23,983 INFO L225 Difference]: With dead ends: 635 [2020-09-24 17:01:23,983 INFO L226 Difference]: Without dead ends: 334 [2020-09-24 17:01:23,994 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 [2020-09-24 17:01:24,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-24 17:01:24,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-09-24 17:01:24,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-24 17:01:24,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 380 transitions. [2020-09-24 17:01:24,107 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 380 transitions. Word has length 142 [2020-09-24 17:01:24,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:01:24,110 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 380 transitions. [2020-09-24 17:01:24,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:01:24,111 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 380 transitions. [2020-09-24 17:01:24,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 17:01:24,121 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:24,121 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:01:24,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:01:24,123 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:24,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1249677314, now seen corresponding path program 1 times [2020-09-24 17:01:24,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:24,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953946546] [2020-09-24 17:01:24,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:24,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:24,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:24,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:24,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:24,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:24,673 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:24,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-24 17:01:24,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:01:24,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-09-24 17:01:24,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:01:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-24 17:01:24,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 17:01:24,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:01:24,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:01:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:24,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:24,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:24,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:01:24,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:24,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 17:01:24,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:01:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:01:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:01:24,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:01:24,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953946546] [2020-09-24 17:01:24,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:01:24,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:01:24,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132688634] [2020-09-24 17:01:24,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:01:24,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:01:24,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:01:24,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:01:24,795 INFO L87 Difference]: Start difference. First operand 320 states and 380 transitions. Second operand 3 states. [2020-09-24 17:01:25,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:01:25,027 INFO L93 Difference]: Finished difference Result 569 states and 720 transitions. [2020-09-24 17:01:25,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:01:25,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-24 17:01:25,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:01:25,034 INFO L225 Difference]: With dead ends: 569 [2020-09-24 17:01:25,034 INFO L226 Difference]: Without dead ends: 377 [2020-09-24 17:01:25,036 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 [2020-09-24 17:01:25,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-09-24 17:01:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 333. [2020-09-24 17:01:25,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-24 17:01:25,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 398 transitions. [2020-09-24 17:01:25,072 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 398 transitions. Word has length 158 [2020-09-24 17:01:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:01:25,073 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 398 transitions. [2020-09-24 17:01:25,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:01:25,073 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 398 transitions. [2020-09-24 17:01:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 17:01:25,076 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:25,077 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 17:01:25,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:01:25,077 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:25,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:25,078 INFO L82 PathProgramCache]: Analyzing trace with hash 980116923, now seen corresponding path program 1 times [2020-09-24 17:01:25,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:25,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133212418] [2020-09-24 17:01:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:25,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:25,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:25,406 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:25,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-24 17:01:25,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:01:25,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-24 17:01:25,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:25,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:01:25,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 17:01:25,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 17:01:25,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:25,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:01:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:25,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:25,458 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:25,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:01:25,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:01:25,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:01:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:01:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:01:25,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:01:25,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133212418] [2020-09-24 17:01:25,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:01:25,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:01:25,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068547740] [2020-09-24 17:01:25,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:01:25,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:01:25,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:01:25,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:01:25,482 INFO L87 Difference]: Start difference. First operand 333 states and 398 transitions. Second operand 3 states. [2020-09-24 17:01:25,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:01:25,714 INFO L93 Difference]: Finished difference Result 607 states and 769 transitions. [2020-09-24 17:01:25,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:01:25,714 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-24 17:01:25,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:01:25,717 INFO L225 Difference]: With dead ends: 607 [2020-09-24 17:01:25,717 INFO L226 Difference]: Without dead ends: 402 [2020-09-24 17:01:25,718 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 [2020-09-24 17:01:25,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-24 17:01:25,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 377. [2020-09-24 17:01:25,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-09-24 17:01:25,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 450 transitions. [2020-09-24 17:01:25,732 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 450 transitions. Word has length 160 [2020-09-24 17:01:25,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:01:25,733 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 450 transitions. [2020-09-24 17:01:25,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:01:25,733 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 450 transitions. [2020-09-24 17:01:25,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 17:01:25,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:25,736 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-24 17:01:25,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 17:01:25,736 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:25,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1724791051, now seen corresponding path program 1 times [2020-09-24 17:01:25,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:25,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1232291975] [2020-09-24 17:01:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:25,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:25,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:26,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:26,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-24 17:01:26,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:01:26,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-09-24 17:01:26,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:01:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-24 17:01:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 17:01:26,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:01:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:26,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:26,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:26,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:01:26,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:26,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:01:26,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:01:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:01:26,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:01:26,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 17:01:26,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1232291975] [2020-09-24 17:01:26,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:01:26,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:01:26,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190832251] [2020-09-24 17:01:26,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:01:26,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:01:26,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:01:26,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:01:26,256 INFO L87 Difference]: Start difference. First operand 377 states and 450 transitions. Second operand 4 states. [2020-09-24 17:01:26,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:01:26,632 INFO L93 Difference]: Finished difference Result 938 states and 1171 transitions. [2020-09-24 17:01:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:01:26,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2020-09-24 17:01:26,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:01:26,638 INFO L225 Difference]: With dead ends: 938 [2020-09-24 17:01:26,639 INFO L226 Difference]: Without dead ends: 689 [2020-09-24 17:01:26,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:01:26,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-09-24 17:01:26,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 398. [2020-09-24 17:01:26,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-24 17:01:26,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 476 transitions. [2020-09-24 17:01:26,666 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 476 transitions. Word has length 167 [2020-09-24 17:01:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:01:26,666 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 476 transitions. [2020-09-24 17:01:26,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:01:26,667 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 476 transitions. [2020-09-24 17:01:26,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 17:01:26,669 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:26,670 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:01:26,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 17:01:26,670 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:26,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:26,671 INFO L82 PathProgramCache]: Analyzing trace with hash -2007825220, now seen corresponding path program 1 times [2020-09-24 17:01:26,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:26,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1728696775] [2020-09-24 17:01:26,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:26,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:26,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:26,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:27,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:27,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 17:01:27,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 17:01:27,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-24 17:01:27,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:27,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:01:27,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 17:01:27,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 17:01:27,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:01:27,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:01:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:27,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:27,091 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:27,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:01:27,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:27,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:01:27,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:27,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:01:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:01:27,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:01:27,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:27,146 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 17:01:27,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1728696775] [2020-09-24 17:01:27,147 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:01:27,147 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:01:27,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509344127] [2020-09-24 17:01:27,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:01:27,148 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:01:27,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:01:27,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:01:27,148 INFO L87 Difference]: Start difference. First operand 398 states and 476 transitions. Second operand 3 states. [2020-09-24 17:01:27,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:01:27,276 INFO L93 Difference]: Finished difference Result 699 states and 863 transitions. [2020-09-24 17:01:27,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:01:27,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-24 17:01:27,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:01:27,279 INFO L225 Difference]: With dead ends: 699 [2020-09-24 17:01:27,279 INFO L226 Difference]: Without dead ends: 429 [2020-09-24 17:01:27,281 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 [2020-09-24 17:01:27,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-09-24 17:01:27,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 418. [2020-09-24 17:01:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-09-24 17:01:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 501 transitions. [2020-09-24 17:01:27,293 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 501 transitions. Word has length 180 [2020-09-24 17:01:27,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:01:27,293 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 501 transitions. [2020-09-24 17:01:27,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:01:27,294 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 501 transitions. [2020-09-24 17:01:27,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-24 17:01:27,296 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:27,296 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:01:27,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 17:01:27,297 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:27,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:27,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1814721748, now seen corresponding path program 1 times [2020-09-24 17:01:27,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:27,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853032505] [2020-09-24 17:01:27,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:27,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:27,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:27,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:27,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:28,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:28,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 17:01:28,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 17:01:28,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 752 [2020-09-24 17:01:28,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:01:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 17:01:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 17:01:28,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:01:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:28,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:28,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:28,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:01:28,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:28,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:01:28,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:28,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:01:28,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:01:28,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:01:28,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:28,161 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 17:01:28,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853032505] [2020-09-24 17:01:28,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:01:28,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 17:01:28,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866273023] [2020-09-24 17:01:28,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 17:01:28,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:01:28,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 17:01:28,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 17:01:28,164 INFO L87 Difference]: Start difference. First operand 418 states and 501 transitions. Second operand 4 states. [2020-09-24 17:01:28,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:01:28,440 INFO L93 Difference]: Finished difference Result 1027 states and 1278 transitions. [2020-09-24 17:01:28,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 17:01:28,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 187 [2020-09-24 17:01:28,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:01:28,445 INFO L225 Difference]: With dead ends: 1027 [2020-09-24 17:01:28,445 INFO L226 Difference]: Without dead ends: 737 [2020-09-24 17:01:28,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 17:01:28,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2020-09-24 17:01:28,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 421. [2020-09-24 17:01:28,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-09-24 17:01:28,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 504 transitions. [2020-09-24 17:01:28,461 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 504 transitions. Word has length 187 [2020-09-24 17:01:28,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:01:28,461 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 504 transitions. [2020-09-24 17:01:28,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 17:01:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 504 transitions. [2020-09-24 17:01:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-24 17:01:28,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:28,464 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:01:28,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 17:01:28,465 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:28,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:28,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1391767700, now seen corresponding path program 1 times [2020-09-24 17:01:28,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:28,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [828230610] [2020-09-24 17:01:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:28,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:28,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:28,743 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:28,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 17:01:28,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:01:28,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 17:01:28,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:28,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:01:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-24 17:01:28,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-24 17:01:28,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:01:28,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:01:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:28,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:28,806 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:28,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:01:28,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:28,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 17:01:28,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:28,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:01:28,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:01:28,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:01:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:01:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 17:01:28,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [828230610] [2020-09-24 17:01:28,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:01:28,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:01:28,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886972960] [2020-09-24 17:01:28,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:01:28,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:01:28,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:01:28,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:01:28,880 INFO L87 Difference]: Start difference. First operand 421 states and 504 transitions. Second operand 3 states. [2020-09-24 17:01:28,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:01:28,961 INFO L93 Difference]: Finished difference Result 999 states and 1238 transitions. [2020-09-24 17:01:28,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:01:28,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-24 17:01:28,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:01:28,966 INFO L225 Difference]: With dead ends: 999 [2020-09-24 17:01:28,966 INFO L226 Difference]: Without dead ends: 706 [2020-09-24 17:01:28,968 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 [2020-09-24 17:01:28,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-09-24 17:01:28,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 704. [2020-09-24 17:01:28,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-09-24 17:01:28,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 861 transitions. [2020-09-24 17:01:28,997 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 861 transitions. Word has length 202 [2020-09-24 17:01:28,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:01:28,998 INFO L479 AbstractCegarLoop]: Abstraction has 704 states and 861 transitions. [2020-09-24 17:01:28,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:01:28,998 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 861 transitions. [2020-09-24 17:01:29,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-24 17:01:29,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:29,003 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:01:29,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 17:01:29,004 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:29,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:29,005 INFO L82 PathProgramCache]: Analyzing trace with hash -107973039, now seen corresponding path program 1 times [2020-09-24 17:01:29,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:29,006 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334167001] [2020-09-24 17:01:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:29,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:29,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:29,190 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:29,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 17:01:29,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:29,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-09-24 17:01:29,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:29,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:01:29,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-24 17:01:29,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-24 17:01:29,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:29,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:01:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:01:29,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:01:29,241 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:01:29,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 17:01:29,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:01:29,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 17:01:29,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:01:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:01:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:01:29,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:01:29,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:01:29,270 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 17:01:29,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334167001] [2020-09-24 17:01:29,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:01:29,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 17:01:29,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632913836] [2020-09-24 17:01:29,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 17:01:29,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:01:29,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 17:01:29,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 17:01:29,273 INFO L87 Difference]: Start difference. First operand 704 states and 861 transitions. Second operand 3 states. [2020-09-24 17:01:29,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:01:29,308 INFO L93 Difference]: Finished difference Result 1042 states and 1285 transitions. [2020-09-24 17:01:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 17:01:29,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-24 17:01:29,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:01:29,311 INFO L225 Difference]: With dead ends: 1042 [2020-09-24 17:01:29,311 INFO L226 Difference]: Without dead ends: 466 [2020-09-24 17:01:29,312 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 [2020-09-24 17:01:29,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-09-24 17:01:29,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2020-09-24 17:01:29,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-09-24 17:01:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 556 transitions. [2020-09-24 17:01:29,327 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 556 transitions. Word has length 202 [2020-09-24 17:01:29,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:01:29,327 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 556 transitions. [2020-09-24 17:01:29,327 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 17:01:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 556 transitions. [2020-09-24 17:01:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 17:01:29,330 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:01:29,331 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:01:29,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 17:01:29,331 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:01:29,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:01:29,332 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-24 17:01:29,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:01:29,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984704359] [2020-09-24 17:01:29,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:01:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 17:01:29,365 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 17:01:29,366 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 17:01:29,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 17:01:29,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:01:29 BoogieIcfgContainer [2020-09-24 17:01:29,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:01:29,426 INFO L168 Benchmark]: Toolchain (without parser) took 8434.45 ms. Allocated memory was 140.0 MB in the beginning and 326.1 MB in the end (delta: 186.1 MB). Free memory was 102.6 MB in the beginning and 164.9 MB in the end (delta: -62.3 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:01:29,428 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 17:01:29,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.78 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 178.0 MB in the end (delta: -76.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:01:29,430 INFO L168 Benchmark]: Boogie Preprocessor took 83.79 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 176.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-24 17:01:29,431 INFO L168 Benchmark]: RCFGBuilder took 928.30 ms. Allocated memory is still 202.4 MB. Free memory was 175.3 MB in the beginning and 115.4 MB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 7.1 GB. [2020-09-24 17:01:29,434 INFO L168 Benchmark]: TraceAbstraction took 6877.22 ms. Allocated memory was 202.4 MB in the beginning and 326.1 MB in the end (delta: 123.7 MB). Free memory was 114.7 MB in the beginning and 164.9 MB in the end (delta: -50.2 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:01:29,445 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 535.78 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 102.0 MB in the beginning and 178.0 MB in the end (delta: -76.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.79 ms. Allocated memory is still 202.4 MB. Free memory was 178.0 MB in the beginning and 176.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 928.30 ms. Allocated memory is still 202.4 MB. Free memory was 175.3 MB in the beginning and 115.4 MB in the end (delta: 59.9 MB). Peak memory consumption was 59.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6877.22 ms. Allocated memory was 202.4 MB in the beginning and 326.1 MB in the end (delta: 123.7 MB). Free memory was 114.7 MB in the beginning and 164.9 MB in the end (delta: -50.2 MB). Peak memory consumption was 73.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.7s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3392 SDtfs, 1181 SDslu, 3241 SDs, 0 SdLazy, 940 SolverSat, 140 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=704occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 703 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 1601 NumberOfCodeBlocks, 1601 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1390 ConstructedInterpolants, 0 QuantifiedInterpolants, 328958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 124/124 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...