/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=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:16:14,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:16:14,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:16:14,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:16:14,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:16:14,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:16:14,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:16:14,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:16:14,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:16:14,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:16:14,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:16:14,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:16:14,593 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:16:14,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:16:14,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:16:14,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:16:14,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:16:14,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:16:14,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:16:14,602 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:16:14,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:16:14,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:16:14,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:16:14,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:16:14,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:16:14,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:16:14,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:16:14,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:16:14,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:16:14,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:16:14,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:16:14,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:16:14,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:16:14,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:16:14,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:16:14,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:16:14,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:16:14,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:16:14,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:16:14,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:16:14,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:16:14,635 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 18:16:14,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:16:14,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:16:14,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:16:14,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:16:14,691 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:16:14,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:16:14,691 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:16:14,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:16:14,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:16:14,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:16:14,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:16:14,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:16:14,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:16:14,694 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:16:14,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:16:14,695 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:16:14,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:16:14,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:16:14,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:16:14,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:16:14,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:16:14,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:16:14,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:16:14,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:16:14,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:16:14,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:16:14,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:16:14,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:16:14,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:16:14,698 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:16:15,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:16:15,213 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:16:15,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:16:15,220 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:16:15,221 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:16:15,222 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-24 18:16:15,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3461519e6/3b132d9aef1943b8b15dc8ff266b1970/FLAG4238b662c [2020-09-24 18:16:15,920 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:16:15,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-24 18:16:15,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3461519e6/3b132d9aef1943b8b15dc8ff266b1970/FLAG4238b662c [2020-09-24 18:16:16,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3461519e6/3b132d9aef1943b8b15dc8ff266b1970 [2020-09-24 18:16:16,203 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:16:16,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:16:16,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:16:16,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:16:16,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:16:16,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7105da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16, skipping insertion in model container [2020-09-24 18:16:16,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:16:16,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:16:16,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:16:16,602 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:16:16,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:16:16,790 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:16:16,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16 WrapperNode [2020-09-24 18:16:16,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:16:16,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:16:16,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:16:16,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:16:16,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (1/1) ... [2020-09-24 18:16:16,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:16:16,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:16:16,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:16:16,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:16:16,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (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 18:16:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:16:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:16:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 18:16:16,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:16:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:16:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 18:16:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:16:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 18:16:16,950 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 18:16:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:16:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:16:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:16:17,113 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 18:16:17,826 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-24 18:16:17,827 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-24 18:16:17,853 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:16:17,854 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 18:16:17,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:16:17 BoogieIcfgContainer [2020-09-24 18:16:17,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:16:17,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:16:17,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:16:17,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:16:17,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:16:16" (1/3) ... [2020-09-24 18:16:17,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4bb309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:16:17, skipping insertion in model container [2020-09-24 18:16:17,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:16:16" (2/3) ... [2020-09-24 18:16:17,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4bb309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:16:17, skipping insertion in model container [2020-09-24 18:16:17,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:16:17" (3/3) ... [2020-09-24 18:16:17,872 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-24 18:16:17,885 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:16:17,897 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:16:17,921 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:16:17,958 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:16:17,958 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:16:17,959 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:16:17,959 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:16:17,959 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:16:17,959 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:16:17,959 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:16:17,960 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:16:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-24 18:16:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 18:16:18,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:18,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:18,012 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:18,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:18,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-24 18:16:18,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:18,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1008873762] [2020-09-24 18:16:18,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:18,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:18,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:18,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:19,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:19,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-09-24 18:16:19,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:16:19,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1187 [2020-09-24 18:16:19,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:19,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:19,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 18:16:19,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 18:16:19,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 18:16:19,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:19,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:19,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:19,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:19,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:19,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:16:19,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:19,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:19,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:19,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:19,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:19,713 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 18:16:19,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1008873762] [2020-09-24 18:16:19,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:19,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:19,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731546986] [2020-09-24 18:16:19,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:19,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:19,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:19,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:19,745 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 3 states. [2020-09-24 18:16:19,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:19,902 INFO L93 Difference]: Finished difference Result 853 states and 1110 transitions. [2020-09-24 18:16:19,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:19,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-09-24 18:16:19,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:19,929 INFO L225 Difference]: With dead ends: 853 [2020-09-24 18:16:19,929 INFO L226 Difference]: Without dead ends: 536 [2020-09-24 18:16:19,941 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 18:16:19,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-24 18:16:20,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-09-24 18:16:20,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-24 18:16:20,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 642 transitions. [2020-09-24 18:16:20,056 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 642 transitions. Word has length 161 [2020-09-24 18:16:20,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:20,057 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 642 transitions. [2020-09-24 18:16:20,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:20,058 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 642 transitions. [2020-09-24 18:16:20,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-24 18:16:20,064 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:20,064 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:20,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:16:20,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:20,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:20,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1280710455, now seen corresponding path program 1 times [2020-09-24 18:16:20,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:20,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831467723] [2020-09-24 18:16:20,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:20,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:20,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:20,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:20,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:20,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:21,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:21,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-24 18:16:21,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:16:21,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1362 [2020-09-24 18:16:21,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:21,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:21,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 18:16:21,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 18:16:21,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:21,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:21,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:21,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:21,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:21,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:21,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:21,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:21,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:21,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:21,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:21,532 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:16:21,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831467723] [2020-09-24 18:16:21,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:21,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:21,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259094597] [2020-09-24 18:16:21,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:21,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:21,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:21,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:21,550 INFO L87 Difference]: Start difference. First operand 536 states and 642 transitions. Second operand 3 states. [2020-09-24 18:16:21,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:21,790 INFO L93 Difference]: Finished difference Result 1070 states and 1357 transitions. [2020-09-24 18:16:21,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:21,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-24 18:16:21,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:21,796 INFO L225 Difference]: With dead ends: 1070 [2020-09-24 18:16:21,796 INFO L226 Difference]: Without dead ends: 677 [2020-09-24 18:16:21,799 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 18:16:21,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-09-24 18:16:21,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 624. [2020-09-24 18:16:21,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-09-24 18:16:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 750 transitions. [2020-09-24 18:16:21,838 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 750 transitions. Word has length 181 [2020-09-24 18:16:21,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:21,839 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 750 transitions. [2020-09-24 18:16:21,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 750 transitions. [2020-09-24 18:16:21,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-24 18:16:21,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:21,851 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:21,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:16:21,852 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:21,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:21,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1083144954, now seen corresponding path program 1 times [2020-09-24 18:16:21,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:21,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484071716] [2020-09-24 18:16:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:21,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:22,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:22,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:22,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:22,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:23,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:23,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 18:16:23,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:16:23,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1728 [2020-09-24 18:16:23,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:23,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:23,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 18:16:23,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-24 18:16:23,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:23,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:23,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:23,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:23,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:23,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:23,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:23,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:23,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:23,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:23,697 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:16:23,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484071716] [2020-09-24 18:16:23,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:23,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:23,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724376242] [2020-09-24 18:16:23,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:23,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:23,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:23,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:23,700 INFO L87 Difference]: Start difference. First operand 624 states and 750 transitions. Second operand 3 states. [2020-09-24 18:16:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:23,762 INFO L93 Difference]: Finished difference Result 1105 states and 1358 transitions. [2020-09-24 18:16:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:23,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-09-24 18:16:23,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:23,769 INFO L225 Difference]: With dead ends: 1105 [2020-09-24 18:16:23,769 INFO L226 Difference]: Without dead ends: 861 [2020-09-24 18:16:23,770 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 18:16:23,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-09-24 18:16:23,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861. [2020-09-24 18:16:23,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2020-09-24 18:16:23,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1047 transitions. [2020-09-24 18:16:23,805 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1047 transitions. Word has length 188 [2020-09-24 18:16:23,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:23,805 INFO L479 AbstractCegarLoop]: Abstraction has 861 states and 1047 transitions. [2020-09-24 18:16:23,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:23,806 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1047 transitions. [2020-09-24 18:16:23,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-24 18:16:23,826 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:23,826 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:23,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:16:23,827 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:23,827 INFO L82 PathProgramCache]: Analyzing trace with hash 436822488, now seen corresponding path program 1 times [2020-09-24 18:16:23,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:23,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1266922704] [2020-09-24 18:16:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:23,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:23,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:24,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 18:16:24,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:16:24,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1030 [2020-09-24 18:16:24,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 183 [2020-09-24 18:16:24,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 18:16:24,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:24,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:24,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:24,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:24,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:24,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:24,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:16:24,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:24,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:24,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:24,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:24,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:24,995 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 18:16:24,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1266922704] [2020-09-24 18:16:24,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:24,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:24,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750660716] [2020-09-24 18:16:24,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:24,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:24,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:24,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:24,998 INFO L87 Difference]: Start difference. First operand 861 states and 1047 transitions. Second operand 3 states. [2020-09-24 18:16:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:25,076 INFO L93 Difference]: Finished difference Result 1579 states and 1952 transitions. [2020-09-24 18:16:25,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:25,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-24 18:16:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:25,086 INFO L225 Difference]: With dead ends: 1579 [2020-09-24 18:16:25,087 INFO L226 Difference]: Without dead ends: 1098 [2020-09-24 18:16:25,089 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 18:16:25,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2020-09-24 18:16:25,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2020-09-24 18:16:25,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2020-09-24 18:16:25,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1345 transitions. [2020-09-24 18:16:25,130 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1345 transitions. Word has length 202 [2020-09-24 18:16:25,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:25,131 INFO L479 AbstractCegarLoop]: Abstraction has 1098 states and 1345 transitions. [2020-09-24 18:16:25,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1345 transitions. [2020-09-24 18:16:25,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 18:16:25,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:25,138 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:25,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:16:25,138 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:25,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:25,139 INFO L82 PathProgramCache]: Analyzing trace with hash 992070410, now seen corresponding path program 1 times [2020-09-24 18:16:25,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:25,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [201959394] [2020-09-24 18:16:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:25,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:25,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:25,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:26,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:26,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:26,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:28,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:28,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 18:16:28,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 18:16:28,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3513 [2020-09-24 18:16:28,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 210 [2020-09-24 18:16:28,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 18:16:28,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:28,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:28,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:28,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:28,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:28,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:28,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:28,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:28,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:28,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:28,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:28,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-24 18:16:28,785 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [201959394] [2020-09-24 18:16:28,785 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:28,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:28,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499291999] [2020-09-24 18:16:28,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:28,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:28,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:28,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:28,787 INFO L87 Difference]: Start difference. First operand 1098 states and 1345 transitions. Second operand 3 states. [2020-09-24 18:16:28,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:28,992 INFO L93 Difference]: Finished difference Result 2182 states and 2741 transitions. [2020-09-24 18:16:28,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:28,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-09-24 18:16:28,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:29,001 INFO L225 Difference]: With dead ends: 2182 [2020-09-24 18:16:29,001 INFO L226 Difference]: Without dead ends: 1227 [2020-09-24 18:16:29,004 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 18:16:29,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2020-09-24 18:16:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1194. [2020-09-24 18:16:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-09-24 18:16:29,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1461 transitions. [2020-09-24 18:16:29,041 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1461 transitions. Word has length 226 [2020-09-24 18:16:29,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:29,042 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1461 transitions. [2020-09-24 18:16:29,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:29,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1461 transitions. [2020-09-24 18:16:29,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-09-24 18:16:29,047 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:29,047 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:29,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 18:16:29,048 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:29,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1575143333, now seen corresponding path program 1 times [2020-09-24 18:16:29,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:29,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376639011] [2020-09-24 18:16:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:29,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:29,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:29,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:29,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:30,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:31,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:34,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:34,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 18:16:34,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 18:16:34,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-24 18:16:34,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:34,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-09-24 18:16:34,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-24 18:16:34,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-24 18:16:34,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:34,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:34,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:34,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:34,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:34,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:34,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:34,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:34,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-24 18:16:34,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376639011] [2020-09-24 18:16:34,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:34,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:34,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493178226] [2020-09-24 18:16:34,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:34,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:34,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:34,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:34,247 INFO L87 Difference]: Start difference. First operand 1194 states and 1461 transitions. Second operand 3 states. [2020-09-24 18:16:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:34,305 INFO L93 Difference]: Finished difference Result 3188 states and 3933 transitions. [2020-09-24 18:16:34,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:34,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-09-24 18:16:34,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:34,322 INFO L225 Difference]: With dead ends: 3188 [2020-09-24 18:16:34,323 INFO L226 Difference]: Without dead ends: 2137 [2020-09-24 18:16:34,326 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 18:16:34,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2137 states. [2020-09-24 18:16:34,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2137 to 2135. [2020-09-24 18:16:34,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2020-09-24 18:16:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 2606 transitions. [2020-09-24 18:16:34,391 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 2606 transitions. Word has length 233 [2020-09-24 18:16:34,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:34,392 INFO L479 AbstractCegarLoop]: Abstraction has 2135 states and 2606 transitions. [2020-09-24 18:16:34,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:34,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 2606 transitions. [2020-09-24 18:16:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 18:16:34,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:34,400 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:34,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 18:16:34,400 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:34,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:34,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1979978825, now seen corresponding path program 1 times [2020-09-24 18:16:34,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:34,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839172028] [2020-09-24 18:16:34,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:34,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:34,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:34,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:34,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:34,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:35,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:36,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:36,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:37,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:39,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:39,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 18:16:39,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 18:16:39,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-24 18:16:39,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:39,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:39,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-24 18:16:39,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 18:16:39,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:39,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:39,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:39,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:39,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:39,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:39,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:39,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:39,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:39,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:16:39,567 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-09-24 18:16:39,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839172028] [2020-09-24 18:16:39,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:39,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:39,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8918565] [2020-09-24 18:16:39,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:39,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:39,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:39,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:39,571 INFO L87 Difference]: Start difference. First operand 2135 states and 2606 transitions. Second operand 3 states. [2020-09-24 18:16:39,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:39,641 INFO L93 Difference]: Finished difference Result 4163 states and 5109 transitions. [2020-09-24 18:16:39,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:39,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-09-24 18:16:39,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:39,658 INFO L225 Difference]: With dead ends: 4163 [2020-09-24 18:16:39,658 INFO L226 Difference]: Without dead ends: 2171 [2020-09-24 18:16:39,663 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 18:16:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2020-09-24 18:16:39,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 2151. [2020-09-24 18:16:39,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2151 states. [2020-09-24 18:16:39,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 2618 transitions. [2020-09-24 18:16:39,742 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 2618 transitions. Word has length 235 [2020-09-24 18:16:39,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:39,742 INFO L479 AbstractCegarLoop]: Abstraction has 2151 states and 2618 transitions. [2020-09-24 18:16:39,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:39,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 2618 transitions. [2020-09-24 18:16:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-24 18:16:39,755 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:39,756 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:39,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 18:16:39,756 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:39,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:39,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1674320215, now seen corresponding path program 1 times [2020-09-24 18:16:39,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:39,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901722003] [2020-09-24 18:16:39,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:39,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:39,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:39,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:39,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:39,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:40,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:41,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:43,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:43,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:44,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:44,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:44,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-24 18:16:44,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-24 18:16:44,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 18:16:44,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:44,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-24 18:16:44,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-24 18:16:44,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:44,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:44,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:44,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:44,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:44,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:44,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:44,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:44,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:44,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:16:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-24 18:16:44,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901722003] [2020-09-24 18:16:44,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:44,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:44,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324692973] [2020-09-24 18:16:44,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:44,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:44,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:44,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:44,890 INFO L87 Difference]: Start difference. First operand 2151 states and 2618 transitions. Second operand 3 states. [2020-09-24 18:16:44,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:44,986 INFO L93 Difference]: Finished difference Result 6148 states and 7531 transitions. [2020-09-24 18:16:44,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:44,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-09-24 18:16:44,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:45,012 INFO L225 Difference]: With dead ends: 6148 [2020-09-24 18:16:45,012 INFO L226 Difference]: Without dead ends: 4140 [2020-09-24 18:16:45,020 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 18:16:45,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4140 states. [2020-09-24 18:16:45,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4140 to 4138. [2020-09-24 18:16:45,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4138 states. [2020-09-24 18:16:45,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4138 states to 4138 states and 5039 transitions. [2020-09-24 18:16:45,162 INFO L78 Accepts]: Start accepts. Automaton has 4138 states and 5039 transitions. Word has length 239 [2020-09-24 18:16:45,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:45,162 INFO L479 AbstractCegarLoop]: Abstraction has 4138 states and 5039 transitions. [2020-09-24 18:16:45,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:45,163 INFO L276 IsEmpty]: Start isEmpty. Operand 4138 states and 5039 transitions. [2020-09-24 18:16:45,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-24 18:16:45,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:45,174 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:45,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 18:16:45,175 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:45,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1178768091, now seen corresponding path program 1 times [2020-09-24 18:16:45,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:45,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426929249] [2020-09-24 18:16:45,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:45,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:45,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:45,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:45,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:45,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:45,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:46,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:46,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:47,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:47,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:48,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:48,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:49,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:49,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:50,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:50,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:50,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 18:16:50,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-24 18:16:50,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-24 18:16:50,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:50,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 18:16:50,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-24 18:16:50,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:50,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:50,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:50,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:50,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:50,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:50,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:50,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:50,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:50,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:50,305 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-24 18:16:50,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426929249] [2020-09-24 18:16:50,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:50,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:50,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028139207] [2020-09-24 18:16:50,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:50,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:50,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:50,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:50,317 INFO L87 Difference]: Start difference. First operand 4138 states and 5039 transitions. Second operand 3 states. [2020-09-24 18:16:50,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:50,643 INFO L93 Difference]: Finished difference Result 9028 states and 11368 transitions. [2020-09-24 18:16:50,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:50,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-09-24 18:16:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:50,675 INFO L225 Difference]: With dead ends: 9028 [2020-09-24 18:16:50,675 INFO L226 Difference]: Without dead ends: 5022 [2020-09-24 18:16:50,692 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 18:16:50,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2020-09-24 18:16:50,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 4774. [2020-09-24 18:16:50,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4774 states. [2020-09-24 18:16:50,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 5763 transitions. [2020-09-24 18:16:50,912 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 5763 transitions. Word has length 241 [2020-09-24 18:16:50,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:50,913 INFO L479 AbstractCegarLoop]: Abstraction has 4774 states and 5763 transitions. [2020-09-24 18:16:50,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:50,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 5763 transitions. [2020-09-24 18:16:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-24 18:16:50,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:50,932 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:50,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 18:16:50,933 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:50,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:50,934 INFO L82 PathProgramCache]: Analyzing trace with hash -81153851, now seen corresponding path program 1 times [2020-09-24 18:16:50,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:50,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111713846] [2020-09-24 18:16:50,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:51,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:51,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:51,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:51,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:51,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:51,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:51,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:51,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:53,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:53,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:53,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:53,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:54,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:54,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:55,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:55,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:55,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:55,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 18:16:55,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 16 [2020-09-24 18:16:55,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 18:16:55,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:55,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:16:55,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-09-24 18:16:55,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 18:16:55,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:56,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:56,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:56,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:56,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:56,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:56,076 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-24 18:16:56,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111713846] [2020-09-24 18:16:56,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:56,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:16:56,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965784341] [2020-09-24 18:16:56,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:16:56,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:56,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:16:56,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:16:56,079 INFO L87 Difference]: Start difference. First operand 4774 states and 5763 transitions. Second operand 3 states. [2020-09-24 18:16:56,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:56,193 INFO L93 Difference]: Finished difference Result 9400 states and 11392 transitions. [2020-09-24 18:16:56,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:16:56,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-09-24 18:16:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:56,223 INFO L225 Difference]: With dead ends: 9400 [2020-09-24 18:16:56,223 INFO L226 Difference]: Without dead ends: 5925 [2020-09-24 18:16:56,231 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 18:16:56,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2020-09-24 18:16:56,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 5925. [2020-09-24 18:16:56,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5925 states. [2020-09-24 18:16:56,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5925 states to 5925 states and 7164 transitions. [2020-09-24 18:16:56,377 INFO L78 Accepts]: Start accepts. Automaton has 5925 states and 7164 transitions. Word has length 241 [2020-09-24 18:16:56,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:56,378 INFO L479 AbstractCegarLoop]: Abstraction has 5925 states and 7164 transitions. [2020-09-24 18:16:56,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:16:56,378 INFO L276 IsEmpty]: Start isEmpty. Operand 5925 states and 7164 transitions. [2020-09-24 18:16:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-09-24 18:16:56,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:56,391 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:56,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 18:16:56,391 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:56,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:56,392 INFO L82 PathProgramCache]: Analyzing trace with hash -552259409, now seen corresponding path program 1 times [2020-09-24 18:16:56,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:56,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432464560] [2020-09-24 18:16:56,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:56,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:56,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:57,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:57,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 260 [2020-09-24 18:16:57,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:16:57,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 653 [2020-09-24 18:16:57,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:16:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 18:16:57,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-09-24 18:16:57,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:57,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:57,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:57,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:57,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:57,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:57,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:57,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:57,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:57,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:16:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 18:16:57,252 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432464560] [2020-09-24 18:16:57,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:57,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:16:57,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003343300] [2020-09-24 18:16:57,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:16:57,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:57,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:16:57,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:16:57,254 INFO L87 Difference]: Start difference. First operand 5925 states and 7164 transitions. Second operand 6 states. [2020-09-24 18:16:57,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:57,536 INFO L93 Difference]: Finished difference Result 12430 states and 15166 transitions. [2020-09-24 18:16:57,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:16:57,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2020-09-24 18:16:57,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:57,566 INFO L225 Difference]: With dead ends: 12430 [2020-09-24 18:16:57,566 INFO L226 Difference]: Without dead ends: 6653 [2020-09-24 18:16:57,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:16:57,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6653 states. [2020-09-24 18:16:57,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6653 to 6475. [2020-09-24 18:16:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6475 states. [2020-09-24 18:16:57,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6475 states to 6475 states and 7914 transitions. [2020-09-24 18:16:57,735 INFO L78 Accepts]: Start accepts. Automaton has 6475 states and 7914 transitions. Word has length 251 [2020-09-24 18:16:57,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:57,736 INFO L479 AbstractCegarLoop]: Abstraction has 6475 states and 7914 transitions. [2020-09-24 18:16:57,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:16:57,736 INFO L276 IsEmpty]: Start isEmpty. Operand 6475 states and 7914 transitions. [2020-09-24 18:16:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-09-24 18:16:57,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:57,749 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:57,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 18:16:57,749 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:57,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:57,750 INFO L82 PathProgramCache]: Analyzing trace with hash -349484375, now seen corresponding path program 1 times [2020-09-24 18:16:57,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:57,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262193734] [2020-09-24 18:16:57,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:57,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:57,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:58,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:58,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-09-24 18:16:58,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:16:58,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-09-24 18:16:58,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:16:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 18:16:58,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-24 18:16:58,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:58,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:16:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:16:58,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:16:58,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:16:58,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:16:58,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:16:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:16:58,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:16:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:16:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:16:58,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:16:58,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:16:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 18:16:58,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262193734] [2020-09-24 18:16:58,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:16:58,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:16:58,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080015177] [2020-09-24 18:16:58,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:16:58,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:16:58,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:16:58,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:16:58,291 INFO L87 Difference]: Start difference. First operand 6475 states and 7914 transitions. Second operand 6 states. [2020-09-24 18:16:58,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:16:58,547 INFO L93 Difference]: Finished difference Result 12808 states and 15682 transitions. [2020-09-24 18:16:58,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:16:58,548 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 252 [2020-09-24 18:16:58,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:16:58,573 INFO L225 Difference]: With dead ends: 12808 [2020-09-24 18:16:58,573 INFO L226 Difference]: Without dead ends: 6481 [2020-09-24 18:16:58,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:16:58,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6481 states. [2020-09-24 18:16:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6481 to 6481. [2020-09-24 18:16:58,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6481 states. [2020-09-24 18:16:58,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6481 states to 6481 states and 7920 transitions. [2020-09-24 18:16:58,723 INFO L78 Accepts]: Start accepts. Automaton has 6481 states and 7920 transitions. Word has length 252 [2020-09-24 18:16:58,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:16:58,724 INFO L479 AbstractCegarLoop]: Abstraction has 6481 states and 7920 transitions. [2020-09-24 18:16:58,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:16:58,724 INFO L276 IsEmpty]: Start isEmpty. Operand 6481 states and 7920 transitions. [2020-09-24 18:16:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-24 18:16:58,783 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:16:58,784 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:16:58,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 18:16:58,785 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:16:58,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:16:58,786 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-24 18:16:58,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:16:58,786 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153808508] [2020-09-24 18:16:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:16:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 18:16:58,831 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 18:16:58,832 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 18:16:58,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 18:16:58,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:16:58 BoogieIcfgContainer [2020-09-24 18:16:58,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:16:58,902 INFO L168 Benchmark]: Toolchain (without parser) took 42690.77 ms. Allocated memory was 146.8 MB in the beginning and 636.5 MB in the end (delta: 489.7 MB). Free memory was 102.4 MB in the beginning and 563.5 MB in the end (delta: -461.1 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:58,903 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:16:58,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.78 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 179.5 MB in the end (delta: -77.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:58,905 INFO L168 Benchmark]: Boogie Preprocessor took 72.68 ms. Allocated memory is still 203.4 MB. Free memory was 179.5 MB in the beginning and 176.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:58,906 INFO L168 Benchmark]: RCFGBuilder took 998.25 ms. Allocated memory is still 203.4 MB. Free memory was 176.4 MB in the beginning and 112.8 MB in the end (delta: 63.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:16:58,912 INFO L168 Benchmark]: TraceAbstraction took 41029.83 ms. Allocated memory was 203.4 MB in the beginning and 636.5 MB in the end (delta: 433.1 MB). Free memory was 112.1 MB in the beginning and 563.5 MB in the end (delta: -451.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:16:58,917 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 581.78 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 101.8 MB in the beginning and 179.5 MB in the end (delta: -77.7 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.68 ms. Allocated memory is still 203.4 MB. Free memory was 179.5 MB in the beginning and 176.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 998.25 ms. Allocated memory is still 203.4 MB. Free memory was 176.4 MB in the beginning and 112.8 MB in the end (delta: 63.6 MB). Peak memory consumption was 63.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41029.83 ms. Allocated memory was 203.4 MB in the beginning and 636.5 MB in the end (delta: 433.1 MB). Free memory was 112.1 MB in the beginning and 563.5 MB in the end (delta: -451.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 - 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version - 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L257] COND FALSE !(ret <= 0) [L260] s__state = 4384 [L261] s__init_num = 0 [L262] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L268] ret = __VERIFIER_nondet_int() [L269] COND TRUE blastFlag == 1 [L270] blastFlag = 2 [L272] COND FALSE !(ret <= 0) [L275] COND FALSE !(\read(s__hit)) [L278] s__state = 4400 [L280] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L285] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L286] COND FALSE !(__cil_tmp56 - 256UL) [L289] ret = __VERIFIER_nondet_int() [L290] COND TRUE blastFlag == 2 [L291] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 385 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.8s, OverallIterations: 13, TraceHistogramMax: 6, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5310 SDtfs, 3461 SDslu, 4508 SDs, 0 SdLazy, 709 SolverSat, 138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6481occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 536 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 35.7s InterpolantComputationTime, 2924 NumberOfCodeBlocks, 2924 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2638 ConstructedInterpolants, 0 QuantifiedInterpolants, 909122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 680/680 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...