/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=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:51:39,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:51:39,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:51:39,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:51:39,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:51:39,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:51:39,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:51:39,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:51:39,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:51:39,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:51:39,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:51:39,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:51:39,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:51:39,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:51:39,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:51:39,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:51:39,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:51:39,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:51:39,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:51:39,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:51:39,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:51:39,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:51:39,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:51:39,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:51:39,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:51:39,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:51:39,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:51:39,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:51:39,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:51:39,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:51:39,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:51:39,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:51:39,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:51:39,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:51:39,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:51:39,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:51:39,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:51:39,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:51:39,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:51:39,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:51:39,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:51:39,545 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 00:51:39,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:51:39,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:51:39,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:51:39,591 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:51:39,591 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:51:39,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:51:39,592 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:51:39,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:51:39,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:51:39,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:51:39,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:51:39,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:51:39,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:51:39,594 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:51:39,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:51:39,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:51:39,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:51:39,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:51:39,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:51:39,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:51:39,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:51:39,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:51:39,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:51:39,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:51:39,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:51:39,596 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:51:39,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:51:39,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:51:39,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:51:39,597 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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;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=DEEPEST;log-additional-information=true; [2020-09-25 00:51:40,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:51:40,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:51:40,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:51:40,168 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:51:40,168 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:51:40,170 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 00:51:40,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e400aea0/ebf392b987284c45a3aa9eca9430e8d7/FLAG7433efe33 [2020-09-25 00:51:40,844 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:51:40,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 00:51:40,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e400aea0/ebf392b987284c45a3aa9eca9430e8d7/FLAG7433efe33 [2020-09-25 00:51:41,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2e400aea0/ebf392b987284c45a3aa9eca9430e8d7 [2020-09-25 00:51:41,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:51:41,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:51:41,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:41,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:51:41,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:51:41,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8484e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41, skipping insertion in model container [2020-09-25 00:51:41,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:51:41,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:51:41,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:41,537 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:51:41,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:51:41,714 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:51:41,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41 WrapperNode [2020-09-25 00:51:41,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:51:41,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:51:41,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:51:41,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:51:41,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (1/1) ... [2020-09-25 00:51:41,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:51:41,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:51:41,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:51:41,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:51:41,787 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (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 00:51:41,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:51:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:51:41,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 00:51:41,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:51:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:51:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:51:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 00:51:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 00:51:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:51:41,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:51:41,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:51:42,054 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 00:51:42,736 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-25 00:51:42,736 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-25 00:51:42,761 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:51:42,762 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:51:42,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:42 BoogieIcfgContainer [2020-09-25 00:51:42,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:51:42,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:51:42,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:51:42,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:51:42,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:51:41" (1/3) ... [2020-09-25 00:51:42,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecc1f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:42, skipping insertion in model container [2020-09-25 00:51:42,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:51:41" (2/3) ... [2020-09-25 00:51:42,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ecc1f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:51:42, skipping insertion in model container [2020-09-25 00:51:42,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:51:42" (3/3) ... [2020-09-25 00:51:42,780 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-25 00:51:42,792 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:51:42,803 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:51:42,824 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:51:42,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:51:42,857 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:51:42,857 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:51:42,857 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:51:42,857 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:51:42,857 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:51:42,857 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:51:42,858 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:51:42,886 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 00:51:42,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 00:51:42,904 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:42,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:42,906 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:42,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:42,913 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-25 00:51:42,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:42,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477099770] [2020-09-25 00:51:42,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:43,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:43,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:43,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:43,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 00:51:43,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:51:43,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-25 00:51:43,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:43,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 00:51:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 00:51:43,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:51:43,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:43,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:43,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:43,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:43,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:43,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:43,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:43,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:43,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:43,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:43,748 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 00:51:43,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477099770] [2020-09-25 00:51:43,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:43,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:51:43,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457273184] [2020-09-25 00:51:43,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:51:43,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:43,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:51:43,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:51:43,783 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 00:51:44,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:44,135 INFO L93 Difference]: Finished difference Result 635 states and 851 transitions. [2020-09-25 00:51:44,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:51:44,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 00:51:44,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:44,159 INFO L225 Difference]: With dead ends: 635 [2020-09-25 00:51:44,159 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 00:51:44,166 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 00:51:44,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 00:51:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-09-25 00:51:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-25 00:51:44,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 380 transitions. [2020-09-25 00:51:44,245 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 380 transitions. Word has length 142 [2020-09-25 00:51:44,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:44,247 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 380 transitions. [2020-09-25 00:51:44,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:51:44,247 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 380 transitions. [2020-09-25 00:51:44,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 00:51:44,251 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:44,252 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:44,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:51:44,252 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:44,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:44,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1249677314, now seen corresponding path program 1 times [2020-09-25 00:51:44,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:44,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075706780] [2020-09-25 00:51:44,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:44,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:44,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:44,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:44,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:44,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:44,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 00:51:44,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:51:44,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-09-25 00:51:44,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 00:51:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 00:51:44,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:44,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:44,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:44,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:44,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:44,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:44,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:44,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:44,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:44,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:44,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:44,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:51:44,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075706780] [2020-09-25 00:51:44,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:44,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:51:44,921 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178384205] [2020-09-25 00:51:44,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:51:44,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:44,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:51:44,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:51:44,932 INFO L87 Difference]: Start difference. First operand 320 states and 380 transitions. Second operand 3 states. [2020-09-25 00:51:45,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:45,114 INFO L93 Difference]: Finished difference Result 537 states and 662 transitions. [2020-09-25 00:51:45,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:51:45,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-25 00:51:45,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:45,123 INFO L225 Difference]: With dead ends: 537 [2020-09-25 00:51:45,123 INFO L226 Difference]: Without dead ends: 348 [2020-09-25 00:51:45,127 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 00:51:45,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-25 00:51:45,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 338. [2020-09-25 00:51:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-09-25 00:51:45,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 403 transitions. [2020-09-25 00:51:45,155 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 403 transitions. Word has length 158 [2020-09-25 00:51:45,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:45,156 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 403 transitions. [2020-09-25 00:51:45,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:51:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 403 transitions. [2020-09-25 00:51:45,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 00:51:45,159 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:45,160 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:45,160 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:51:45,160 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:45,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:45,161 INFO L82 PathProgramCache]: Analyzing trace with hash -288801966, now seen corresponding path program 1 times [2020-09-25 00:51:45,161 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:45,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159970765] [2020-09-25 00:51:45,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:45,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:45,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:45,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:45,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:45,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:45,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 00:51:45,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:51:45,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 688 [2020-09-25 00:51:45,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 00:51:45,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 00:51:45,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:45,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:45,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:45,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:45,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:45,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:45,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:45,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:45,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:45,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:45,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:51:45,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159970765] [2020-09-25 00:51:45,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:45,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:51:45,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603234905] [2020-09-25 00:51:45,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:51:45,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:45,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:51:45,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:51:45,949 INFO L87 Difference]: Start difference. First operand 338 states and 403 transitions. Second operand 4 states. [2020-09-25 00:51:46,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:46,469 INFO L93 Difference]: Finished difference Result 888 states and 1147 transitions. [2020-09-25 00:51:46,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:51:46,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2020-09-25 00:51:46,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:46,475 INFO L225 Difference]: With dead ends: 888 [2020-09-25 00:51:46,475 INFO L226 Difference]: Without dead ends: 681 [2020-09-25 00:51:46,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:51:46,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-09-25 00:51:46,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 385. [2020-09-25 00:51:46,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-09-25 00:51:46,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 458 transitions. [2020-09-25 00:51:46,496 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 458 transitions. Word has length 165 [2020-09-25 00:51:46,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:46,496 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 458 transitions. [2020-09-25 00:51:46,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:51:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 458 transitions. [2020-09-25 00:51:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 00:51:46,500 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:46,500 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:46,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:51:46,501 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:46,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:46,501 INFO L82 PathProgramCache]: Analyzing trace with hash -854962305, now seen corresponding path program 1 times [2020-09-25 00:51:46,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:46,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1192041608] [2020-09-25 00:51:46,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:46,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:46,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:46,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:46,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:46,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:47,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:47,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 00:51:47,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 00:51:47,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 596 [2020-09-25 00:51:47,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 00:51:47,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 00:51:47,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:47,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:47,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:47,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:47,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:47,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:47,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:47,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 00:51:47,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:47,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:47,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:47,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:51:47,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1192041608] [2020-09-25 00:51:47,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:47,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:51:47,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479583952] [2020-09-25 00:51:47,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:51:47,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:47,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:51:47,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:51:47,188 INFO L87 Difference]: Start difference. First operand 385 states and 458 transitions. Second operand 3 states. [2020-09-25 00:51:47,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:47,344 INFO L93 Difference]: Finished difference Result 670 states and 824 transitions. [2020-09-25 00:51:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:51:47,344 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-09-25 00:51:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:47,347 INFO L225 Difference]: With dead ends: 670 [2020-09-25 00:51:47,347 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 00:51:47,348 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:51:47,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 00:51:47,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 405. [2020-09-25 00:51:47,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-09-25 00:51:47,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 483 transitions. [2020-09-25 00:51:47,360 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 483 transitions. Word has length 178 [2020-09-25 00:51:47,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:47,360 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 483 transitions. [2020-09-25 00:51:47,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:51:47,360 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 483 transitions. [2020-09-25 00:51:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-25 00:51:47,363 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:47,363 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:47,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 00:51:47,364 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:47,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:47,364 INFO L82 PathProgramCache]: Analyzing trace with hash -216983375, now seen corresponding path program 1 times [2020-09-25 00:51:47,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:47,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1978645870] [2020-09-25 00:51:47,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:47,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:47,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:47,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:47,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:48,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:48,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:49,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:49,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 00:51:49,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 00:51:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1840 [2020-09-25 00:51:49,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 00:51:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-25 00:51:49,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 00:51:49,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:49,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:49,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:49,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:49,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:49,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:49,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:49,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:49,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:49,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:49,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:51:49,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1978645870] [2020-09-25 00:51:49,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:49,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 00:51:49,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081052158] [2020-09-25 00:51:49,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 00:51:49,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:49,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 00:51:49,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 00:51:49,331 INFO L87 Difference]: Start difference. First operand 405 states and 483 transitions. Second operand 4 states. [2020-09-25 00:51:49,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:49,639 INFO L93 Difference]: Finished difference Result 982 states and 1214 transitions. [2020-09-25 00:51:49,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 00:51:49,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 185 [2020-09-25 00:51:49,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:49,644 INFO L225 Difference]: With dead ends: 982 [2020-09-25 00:51:49,645 INFO L226 Difference]: Without dead ends: 708 [2020-09-25 00:51:49,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 00:51:49,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2020-09-25 00:51:49,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 408. [2020-09-25 00:51:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-25 00:51:49,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 486 transitions. [2020-09-25 00:51:49,660 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 486 transitions. Word has length 185 [2020-09-25 00:51:49,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:49,661 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 486 transitions. [2020-09-25 00:51:49,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 00:51:49,661 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 486 transitions. [2020-09-25 00:51:49,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 00:51:49,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:49,664 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:49,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 00:51:49,665 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:49,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:49,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1486280175, now seen corresponding path program 1 times [2020-09-25 00:51:49,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:49,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1074714486] [2020-09-25 00:51:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:49,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:49,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:49,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:49,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:50,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:50,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 00:51:50,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 00:51:50,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 730 [2020-09-25 00:51:50,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:50,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:50,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-25 00:51:50,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-09-25 00:51:50,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:51:50,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:50,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:50,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:50,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:50,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:50,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:50,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:50,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:50,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:50,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:50,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 00:51:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-09-25 00:51:50,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1074714486] [2020-09-25 00:51:50,513 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:50,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:51:50,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342468364] [2020-09-25 00:51:50,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:51:50,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:50,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:51:50,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:51:50,515 INFO L87 Difference]: Start difference. First operand 408 states and 486 transitions. Second operand 3 states. [2020-09-25 00:51:50,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:50,571 INFO L93 Difference]: Finished difference Result 954 states and 1174 transitions. [2020-09-25 00:51:50,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:51:50,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-09-25 00:51:50,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:50,576 INFO L225 Difference]: With dead ends: 954 [2020-09-25 00:51:50,577 INFO L226 Difference]: Without dead ends: 677 [2020-09-25 00:51:50,578 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 00:51:50,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-09-25 00:51:50,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 675. [2020-09-25 00:51:50,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 675 states. [2020-09-25 00:51:50,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 820 transitions. [2020-09-25 00:51:50,621 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 820 transitions. Word has length 200 [2020-09-25 00:51:50,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:50,622 INFO L479 AbstractCegarLoop]: Abstraction has 675 states and 820 transitions. [2020-09-25 00:51:50,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:51:50,622 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 820 transitions. [2020-09-25 00:51:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 00:51:50,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:50,624 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:50,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 00:51:50,625 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:50,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:50,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1524892460, now seen corresponding path program 1 times [2020-09-25 00:51:50,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:50,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873626743] [2020-09-25 00:51:50,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:50,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:50,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:50,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:51,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 00:51:51,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:51:51,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-09-25 00:51:51,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:51,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:51,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-25 00:51:51,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 00:51:51,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:51,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:51,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:51,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:51,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:51,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:51:51,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:51,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:51,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:51,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:51,384 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 00:51:51,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873626743] [2020-09-25 00:51:51,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:51,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:51:51,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928709607] [2020-09-25 00:51:51,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:51:51,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:51,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:51:51,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:51:51,389 INFO L87 Difference]: Start difference. First operand 675 states and 820 transitions. Second operand 3 states. [2020-09-25 00:51:51,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:51,463 INFO L93 Difference]: Finished difference Result 1193 states and 1469 transitions. [2020-09-25 00:51:51,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:51:51,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-09-25 00:51:51,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:51,470 INFO L225 Difference]: With dead ends: 1193 [2020-09-25 00:51:51,470 INFO L226 Difference]: Without dead ends: 649 [2020-09-25 00:51:51,472 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 00:51:51,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-09-25 00:51:51,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 647. [2020-09-25 00:51:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-09-25 00:51:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 785 transitions. [2020-09-25 00:51:51,495 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 785 transitions. Word has length 200 [2020-09-25 00:51:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:51,495 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 785 transitions. [2020-09-25 00:51:51,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:51:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 785 transitions. [2020-09-25 00:51:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 00:51:51,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:51,499 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:51,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 00:51:51,499 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:51,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:51,500 INFO L82 PathProgramCache]: Analyzing trace with hash -782218630, now seen corresponding path program 1 times [2020-09-25 00:51:51,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:51,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560122840] [2020-09-25 00:51:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:51,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:51,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 00:51:51,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:51:51,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-09-25 00:51:51,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:51,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 00:51:51,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 00:51:51,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 00:51:51,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:51,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:51:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:51:51,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:51:51,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:51:51,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 00:51:51,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:51:51,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 00:51:51,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:51:51,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:51:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:51:51,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:51:51,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:51:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-09-25 00:51:51,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560122840] [2020-09-25 00:51:51,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:51:51,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 00:51:51,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718129141] [2020-09-25 00:51:51,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 00:51:51,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:51:51,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 00:51:51,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 00:51:51,996 INFO L87 Difference]: Start difference. First operand 647 states and 785 transitions. Second operand 3 states. [2020-09-25 00:51:52,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:51:52,187 INFO L93 Difference]: Finished difference Result 1163 states and 1432 transitions. [2020-09-25 00:51:52,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 00:51:52,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-09-25 00:51:52,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:51:52,191 INFO L225 Difference]: With dead ends: 1163 [2020-09-25 00:51:52,192 INFO L226 Difference]: Without dead ends: 644 [2020-09-25 00:51:52,193 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 00:51:52,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-09-25 00:51:52,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2020-09-25 00:51:52,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-09-25 00:51:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 780 transitions. [2020-09-25 00:51:52,216 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 780 transitions. Word has length 201 [2020-09-25 00:51:52,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:51:52,217 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 780 transitions. [2020-09-25 00:51:52,217 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 00:51:52,217 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 780 transitions. [2020-09-25 00:51:52,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 00:51:52,223 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:51:52,223 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:51:52,224 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 00:51:52,224 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:51:52,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:51:52,225 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-25 00:51:52,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:51:52,225 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805176987] [2020-09-25 00:51:52,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:51:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 00:51:52,262 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 00:51:52,262 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 00:51:52,270 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 00:51:52,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:51:52 BoogieIcfgContainer [2020-09-25 00:51:52,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:51:52,310 INFO L168 Benchmark]: Toolchain (without parser) took 11136.38 ms. Allocated memory was 144.2 MB in the beginning and 385.4 MB in the end (delta: 241.2 MB). Free memory was 100.2 MB in the beginning and 284.2 MB in the end (delta: -184.0 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:51:52,311 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:51:52,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 535.65 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 99.8 MB in the beginning and 177.1 MB in the end (delta: -77.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:51:52,313 INFO L168 Benchmark]: Boogie Preprocessor took 68.77 ms. Allocated memory is still 200.8 MB. Free memory was 177.1 MB in the beginning and 173.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:51:52,314 INFO L168 Benchmark]: RCFGBuilder took 985.03 ms. Allocated memory is still 200.8 MB. Free memory was 173.9 MB in the beginning and 113.7 MB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:51:52,315 INFO L168 Benchmark]: TraceAbstraction took 9534.75 ms. Allocated memory was 200.8 MB in the beginning and 385.4 MB in the end (delta: 184.5 MB). Free memory was 113.0 MB in the beginning and 284.2 MB in the end (delta: -171.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:51:52,318 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 144.2 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 535.65 ms. Allocated memory was 144.2 MB in the beginning and 200.8 MB in the end (delta: 56.6 MB). Free memory was 99.8 MB in the beginning and 177.1 MB in the end (delta: -77.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.77 ms. Allocated memory is still 200.8 MB. Free memory was 177.1 MB in the beginning and 173.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 985.03 ms. Allocated memory is still 200.8 MB. Free memory was 173.9 MB in the beginning and 113.7 MB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9534.75 ms. Allocated memory was 200.8 MB in the beginning and 385.4 MB in the end (delta: 184.5 MB). Free memory was 113.0 MB in the beginning and 284.2 MB in the end (delta: -171.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.4s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3558 SDtfs, 1230 SDslu, 3364 SDs, 0 SdLazy, 949 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s 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=675occurred in iteration=6, 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, 635 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 1632 NumberOfCodeBlocks, 1632 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1421 ConstructedInterpolants, 0 QuantifiedInterpolants, 341101 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 176/176 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...