/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 SequenceOfStatements --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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 10:33:28,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 10:33:28,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 10:33:28,925 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 10:33:28,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 10:33:28,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 10:33:28,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 10:33:28,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 10:33:28,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 10:33:28,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 10:33:28,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 10:33:28,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 10:33:28,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 10:33:28,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 10:33:28,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 10:33:28,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 10:33:28,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 10:33:28,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 10:33:28,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 10:33:28,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 10:33:28,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 10:33:28,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 10:33:28,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 10:33:28,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 10:33:28,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 10:33:28,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 10:33:28,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 10:33:28,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 10:33:28,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 10:33:28,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 10:33:28,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 10:33:28,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 10:33:28,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 10:33:28,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 10:33:28,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 10:33:28,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 10:33:28,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 10:33:28,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 10:33:28,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 10:33:28,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 10:33:28,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 10:33:28,992 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 [2020-10-12 10:33:29,037 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 10:33:29,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 10:33:29,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 10:33:29,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 10:33:29,039 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 10:33:29,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 10:33:29,039 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 10:33:29,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 10:33:29,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 10:33:29,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 10:33:29,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 10:33:29,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 10:33:29,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 10:33:29,041 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 10:33:29,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 10:33:29,042 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 10:33:29,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 10:33:29,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 10:33:29,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 10:33:29,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 10:33:29,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 10:33:29,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 10:33:29,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 10:33:29,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 10:33:29,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 10:33:29,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 10:33:29,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 10:33:29,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 10:33:29,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 10:33:29,045 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 -> SequenceOfStatements 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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 10:33:29,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 10:33:29,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 10:33:29,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 10:33:29,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 10:33:29,350 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 10:33:29,350 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c [2020-10-12 10:33:29,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95baf9742/26ff406f0a97462db3619791e4920b34/FLAG477f0e2a1 [2020-10-12 10:33:29,941 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 10:33:29,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c [2020-10-12 10:33:29,953 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95baf9742/26ff406f0a97462db3619791e4920b34/FLAG477f0e2a1 [2020-10-12 10:33:30,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/95baf9742/26ff406f0a97462db3619791e4920b34 [2020-10-12 10:33:30,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 10:33:30,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 10:33:30,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 10:33:30,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 10:33:30,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 10:33:30,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef9cdb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30, skipping insertion in model container [2020-10-12 10:33:30,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 10:33:30,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 10:33:30,581 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:33:30,585 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 10:33:30,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 10:33:30,772 INFO L208 MainTranslator]: Completed translation [2020-10-12 10:33:30,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30 WrapperNode [2020-10-12 10:33:30,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 10:33:30,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 10:33:30,774 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 10:33:30,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 10:33:30,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (1/1) ... [2020-10-12 10:33:30,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 10:33:30,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 10:33:30,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 10:33:30,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 10:33:30,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (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 [2020-10-12 10:33:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 10:33:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 10:33:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-12 10:33:30,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 10:33:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 10:33:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 10:33:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-12 10:33:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-12 10:33:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 10:33:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 10:33:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 10:33:31,025 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-12 10:33:31,548 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-12 10:33:31,549 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-12 10:33:31,565 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 10:33:31,566 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 10:33:31,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:33:31 BoogieIcfgContainer [2020-10-12 10:33:31,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 10:33:31,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 10:33:31,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 10:33:31,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 10:33:31,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 10:33:30" (1/3) ... [2020-10-12 10:33:31,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1841dddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:33:31, skipping insertion in model container [2020-10-12 10:33:31,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 10:33:30" (2/3) ... [2020-10-12 10:33:31,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1841dddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 10:33:31, skipping insertion in model container [2020-10-12 10:33:31,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 10:33:31" (3/3) ... [2020-10-12 10:33:31,580 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2020-10-12 10:33:31,590 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 10:33:31,597 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 10:33:31,609 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 10:33:31,632 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 10:33:31,632 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 10:33:31,633 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 10:33:31,633 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 10:33:31,633 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 10:33:31,633 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 10:33:31,634 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 10:33:31,634 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 10:33:31,655 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2020-10-12 10:33:31,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-12 10:33:31,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:31,664 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] [2020-10-12 10:33:31,665 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:31,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:31,670 INFO L82 PathProgramCache]: Analyzing trace with hash 631865998, now seen corresponding path program 1 times [2020-10-12 10:33:31,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:31,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1717254765] [2020-10-12 10:33:31,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:31,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:32,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:32,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:32,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:32,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-12 10:33:32,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:32,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 512 [2020-10-12 10:33:32,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:32,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-12 10:33:32,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:33:32,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 10:33:32,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:32,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:32,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:32,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:32,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:32,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:32,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:32,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:32,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:32,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:33:32,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1717254765] [2020-10-12 10:33:32,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:32,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:32,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484018872] [2020-10-12 10:33:32,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:32,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:32,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:32,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:32,421 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 3 states. [2020-10-12 10:33:32,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:32,616 INFO L93 Difference]: Finished difference Result 257 states and 432 transitions. [2020-10-12 10:33:32,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:32,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-10-12 10:33:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:32,630 INFO L225 Difference]: With dead ends: 257 [2020-10-12 10:33:32,631 INFO L226 Difference]: Without dead ends: 117 [2020-10-12 10:33:32,635 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 [2020-10-12 10:33:32,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-12 10:33:32,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-12 10:33:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-12 10:33:32,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 174 transitions. [2020-10-12 10:33:32,684 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 174 transitions. Word has length 29 [2020-10-12 10:33:32,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:32,685 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 174 transitions. [2020-10-12 10:33:32,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:32,685 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 174 transitions. [2020-10-12 10:33:32,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-12 10:33:32,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:32,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:32,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 10:33:32,687 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:32,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:32,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1718219534, now seen corresponding path program 1 times [2020-10-12 10:33:32,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:32,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [646898486] [2020-10-12 10:33:32,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:32,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:32,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:32,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:32,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:32,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-12 10:33:32,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:32,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-12 10:33:32,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:32,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-12 10:33:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 10:33:32,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:32,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:32,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:32,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:32,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:32,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:32,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:32,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:32,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 10:33:32,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [646898486] [2020-10-12 10:33:32,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:32,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:32,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890670442] [2020-10-12 10:33:32,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:32,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:32,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:32,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:32,921 INFO L87 Difference]: Start difference. First operand 117 states and 174 transitions. Second operand 3 states. [2020-10-12 10:33:33,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:33,168 INFO L93 Difference]: Finished difference Result 273 states and 423 transitions. [2020-10-12 10:33:33,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:33,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-10-12 10:33:33,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:33,173 INFO L225 Difference]: With dead ends: 273 [2020-10-12 10:33:33,173 INFO L226 Difference]: Without dead ends: 171 [2020-10-12 10:33:33,174 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 [2020-10-12 10:33:33,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-10-12 10:33:33,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 158. [2020-10-12 10:33:33,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-12 10:33:33,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 223 transitions. [2020-10-12 10:33:33,192 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 223 transitions. Word has length 41 [2020-10-12 10:33:33,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:33,192 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 223 transitions. [2020-10-12 10:33:33,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:33,193 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 223 transitions. [2020-10-12 10:33:33,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-12 10:33:33,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:33,196 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:33,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 10:33:33,196 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:33,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:33,197 INFO L82 PathProgramCache]: Analyzing trace with hash 483864407, now seen corresponding path program 1 times [2020-10-12 10:33:33,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:33,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508925297] [2020-10-12 10:33:33,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:33,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:33,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:33,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:33,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:33,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-12 10:33:33,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:33,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-12 10:33:33,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:33,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:33,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-12 10:33:33,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 10:33:33,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:33:33,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:33,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:33,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:33,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:33,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:33,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:33,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:33,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:33,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:33,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:33,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:33:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 10:33:33,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508925297] [2020-10-12 10:33:33,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:33,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:33,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645371689] [2020-10-12 10:33:33,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:33,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:33,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:33,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:33,526 INFO L87 Difference]: Start difference. First operand 158 states and 223 transitions. Second operand 3 states. [2020-10-12 10:33:33,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:33,720 INFO L93 Difference]: Finished difference Result 322 states and 463 transitions. [2020-10-12 10:33:33,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:33,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-10-12 10:33:33,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:33,723 INFO L225 Difference]: With dead ends: 322 [2020-10-12 10:33:33,723 INFO L226 Difference]: Without dead ends: 179 [2020-10-12 10:33:33,725 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 [2020-10-12 10:33:33,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2020-10-12 10:33:33,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 175. [2020-10-12 10:33:33,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2020-10-12 10:33:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 245 transitions. [2020-10-12 10:33:33,737 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 245 transitions. Word has length 55 [2020-10-12 10:33:33,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:33,737 INFO L479 AbstractCegarLoop]: Abstraction has 175 states and 245 transitions. [2020-10-12 10:33:33,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:33,738 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 245 transitions. [2020-10-12 10:33:33,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-12 10:33:33,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:33,741 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:33,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 10:33:33,741 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:33,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:33,742 INFO L82 PathProgramCache]: Analyzing trace with hash -245351623, now seen corresponding path program 1 times [2020-10-12 10:33:33,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:33,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [538538015] [2020-10-12 10:33:33,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:33,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:33,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:33,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:34,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 10:33:34,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:34,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-12 10:33:34,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-12 10:33:34,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 10:33:34,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:34,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:34,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:34,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:34,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:34,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:34,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:34,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:34,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-12 10:33:34,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [538538015] [2020-10-12 10:33:34,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:34,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:34,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677684639] [2020-10-12 10:33:34,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:34,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:34,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:34,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:34,092 INFO L87 Difference]: Start difference. First operand 175 states and 245 transitions. Second operand 3 states. [2020-10-12 10:33:34,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:34,117 INFO L93 Difference]: Finished difference Result 356 states and 499 transitions. [2020-10-12 10:33:34,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:34,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-10-12 10:33:34,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:34,119 INFO L225 Difference]: With dead ends: 356 [2020-10-12 10:33:34,119 INFO L226 Difference]: Without dead ends: 196 [2020-10-12 10:33:34,120 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 [2020-10-12 10:33:34,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-10-12 10:33:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2020-10-12 10:33:34,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-10-12 10:33:34,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 272 transitions. [2020-10-12 10:33:34,131 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 272 transitions. Word has length 72 [2020-10-12 10:33:34,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:34,131 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 272 transitions. [2020-10-12 10:33:34,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:34,132 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 272 transitions. [2020-10-12 10:33:34,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-12 10:33:34,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:34,134 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:34,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 10:33:34,134 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:34,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:34,134 INFO L82 PathProgramCache]: Analyzing trace with hash -385900233, now seen corresponding path program 1 times [2020-10-12 10:33:34,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:34,135 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911304416] [2020-10-12 10:33:34,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:34,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:34,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-12 10:33:34,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:33:34,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-12 10:33:34,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-12 10:33:34,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-12 10:33:34,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:34,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:34,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:34,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:34,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:34,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:34,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:34,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:34,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:34,336 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-12 10:33:34,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911304416] [2020-10-12 10:33:34,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:34,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:34,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938483894] [2020-10-12 10:33:34,338 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:34,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:34,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:34,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:34,339 INFO L87 Difference]: Start difference. First operand 196 states and 272 transitions. Second operand 3 states. [2020-10-12 10:33:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:34,381 INFO L93 Difference]: Finished difference Result 535 states and 750 transitions. [2020-10-12 10:33:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:34,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-10-12 10:33:34,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:34,385 INFO L225 Difference]: With dead ends: 535 [2020-10-12 10:33:34,385 INFO L226 Difference]: Without dead ends: 354 [2020-10-12 10:33:34,385 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 [2020-10-12 10:33:34,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-12 10:33:34,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2020-10-12 10:33:34,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-10-12 10:33:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 494 transitions. [2020-10-12 10:33:34,399 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 494 transitions. Word has length 72 [2020-10-12 10:33:34,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:34,400 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 494 transitions. [2020-10-12 10:33:34,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:34,400 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 494 transitions. [2020-10-12 10:33:34,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-12 10:33:34,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:34,403 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 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] [2020-10-12 10:33:34,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 10:33:34,403 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:34,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:34,404 INFO L82 PathProgramCache]: Analyzing trace with hash -145706121, now seen corresponding path program 1 times [2020-10-12 10:33:34,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:34,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115654804] [2020-10-12 10:33:34,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:34,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:34,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-12 10:33:34,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 10:33:34,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-12 10:33:34,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-12 10:33:34,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 10:33:34,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:34,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:34,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:34,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:34,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:34,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:34,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:34,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:34,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:34,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-12 10:33:34,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115654804] [2020-10-12 10:33:34,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:34,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:34,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927872426] [2020-10-12 10:33:34,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:34,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:34,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:34,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:34,828 INFO L87 Difference]: Start difference. First operand 354 states and 494 transitions. Second operand 3 states. [2020-10-12 10:33:34,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:34,877 INFO L93 Difference]: Finished difference Result 851 states and 1194 transitions. [2020-10-12 10:33:34,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:34,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-10-12 10:33:34,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:34,881 INFO L225 Difference]: With dead ends: 851 [2020-10-12 10:33:34,881 INFO L226 Difference]: Without dead ends: 512 [2020-10-12 10:33:34,882 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 [2020-10-12 10:33:34,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-10-12 10:33:34,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2020-10-12 10:33:34,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-10-12 10:33:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 717 transitions. [2020-10-12 10:33:34,899 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 717 transitions. Word has length 90 [2020-10-12 10:33:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:34,899 INFO L479 AbstractCegarLoop]: Abstraction has 512 states and 717 transitions. [2020-10-12 10:33:34,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:34,900 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 717 transitions. [2020-10-12 10:33:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-12 10:33:34,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:34,902 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] [2020-10-12 10:33:34,903 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 10:33:34,903 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:34,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:34,903 INFO L82 PathProgramCache]: Analyzing trace with hash 649333167, now seen corresponding path program 1 times [2020-10-12 10:33:34,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:34,904 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127351861] [2020-10-12 10:33:34,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:34,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:35,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:35,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:35,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-12 10:33:35,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:33:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-12 10:33:35,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 94 [2020-10-12 10:33:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 10:33:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:35,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:35,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:35,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:35,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:35,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:35,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:35,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:33:35,176 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-12 10:33:35,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127351861] [2020-10-12 10:33:35,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:35,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:35,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158731786] [2020-10-12 10:33:35,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:35,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:35,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:35,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:35,179 INFO L87 Difference]: Start difference. First operand 512 states and 717 transitions. Second operand 3 states. [2020-10-12 10:33:35,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:35,228 INFO L93 Difference]: Finished difference Result 672 states and 943 transitions. [2020-10-12 10:33:35,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:35,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2020-10-12 10:33:35,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:35,233 INFO L225 Difference]: With dead ends: 672 [2020-10-12 10:33:35,233 INFO L226 Difference]: Without dead ends: 670 [2020-10-12 10:33:35,234 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 [2020-10-12 10:33:35,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-10-12 10:33:35,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2020-10-12 10:33:35,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2020-10-12 10:33:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 941 transitions. [2020-10-12 10:33:35,254 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 941 transitions. Word has length 110 [2020-10-12 10:33:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:35,255 INFO L479 AbstractCegarLoop]: Abstraction has 670 states and 941 transitions. [2020-10-12 10:33:35,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:35,255 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 941 transitions. [2020-10-12 10:33:35,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-12 10:33:35,257 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:35,258 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:35,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 10:33:35,258 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash 351851192, now seen corresponding path program 1 times [2020-10-12 10:33:35,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:35,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [452092593] [2020-10-12 10:33:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:35,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:35,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:35,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:35,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:35,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 10:33:35,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:35,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-10-12 10:33:35,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:35,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:35,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-12 10:33:35,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 10:33:35,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:35,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:35,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:35,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:35,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:35,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:35,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:35,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:35,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:35,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:35,704 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-12 10:33:35,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [452092593] [2020-10-12 10:33:35,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:35,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:35,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580449012] [2020-10-12 10:33:35,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:35,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:35,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:35,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:35,707 INFO L87 Difference]: Start difference. First operand 670 states and 941 transitions. Second operand 3 states. [2020-10-12 10:33:35,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:35,921 INFO L93 Difference]: Finished difference Result 1525 states and 2215 transitions. [2020-10-12 10:33:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:35,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-10-12 10:33:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:35,926 INFO L225 Difference]: With dead ends: 1525 [2020-10-12 10:33:35,926 INFO L226 Difference]: Without dead ends: 866 [2020-10-12 10:33:35,928 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 [2020-10-12 10:33:35,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-10-12 10:33:35,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 834. [2020-10-12 10:33:35,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2020-10-12 10:33:35,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1141 transitions. [2020-10-12 10:33:35,952 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1141 transitions. Word has length 142 [2020-10-12 10:33:35,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:35,953 INFO L479 AbstractCegarLoop]: Abstraction has 834 states and 1141 transitions. [2020-10-12 10:33:35,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:35,953 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1141 transitions. [2020-10-12 10:33:35,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-10-12 10:33:35,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:35,956 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:35,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 10:33:35,956 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:35,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:35,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1957871164, now seen corresponding path program 1 times [2020-10-12 10:33:35,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:35,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385570281] [2020-10-12 10:33:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:36,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:36,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:36,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:36,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:36,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 10:33:36,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:36,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-12 10:33:36,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 10:33:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 10:33:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:36,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:36,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:36,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:36,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:36,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:36,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:36,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:36,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-12 10:33:36,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385570281] [2020-10-12 10:33:36,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:36,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:36,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458973830] [2020-10-12 10:33:36,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:36,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:36,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:36,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:36,243 INFO L87 Difference]: Start difference. First operand 834 states and 1141 transitions. Second operand 3 states. [2020-10-12 10:33:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:36,504 INFO L93 Difference]: Finished difference Result 1849 states and 2611 transitions. [2020-10-12 10:33:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:36,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-10-12 10:33:36,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:36,513 INFO L225 Difference]: With dead ends: 1849 [2020-10-12 10:33:36,513 INFO L226 Difference]: Without dead ends: 1026 [2020-10-12 10:33:36,515 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 [2020-10-12 10:33:36,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2020-10-12 10:33:36,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 986. [2020-10-12 10:33:36,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 986 states. [2020-10-12 10:33:36,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1389 transitions. [2020-10-12 10:33:36,553 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1389 transitions. Word has length 142 [2020-10-12 10:33:36,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:36,554 INFO L479 AbstractCegarLoop]: Abstraction has 986 states and 1389 transitions. [2020-10-12 10:33:36,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:36,554 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1389 transitions. [2020-10-12 10:33:36,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-12 10:33:36,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:36,558 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:36,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 10:33:36,558 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:36,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:36,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1197403588, now seen corresponding path program 2 times [2020-10-12 10:33:36,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:36,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [335213743] [2020-10-12 10:33:36,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:36,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:36,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:36,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:36,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:36,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-12 10:33:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:36,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-10-12 10:33:36,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-12 10:33:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 10:33:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:36,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:36,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:36,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:36,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:36,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:36,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:36,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:36,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:36,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:36,880 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-10-12 10:33:36,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [335213743] [2020-10-12 10:33:36,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:36,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:36,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873598237] [2020-10-12 10:33:36,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:36,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:36,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:36,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:36,883 INFO L87 Difference]: Start difference. First operand 986 states and 1389 transitions. Second operand 3 states. [2020-10-12 10:33:37,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:37,032 INFO L93 Difference]: Finished difference Result 2049 states and 2919 transitions. [2020-10-12 10:33:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:37,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2020-10-12 10:33:37,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:37,038 INFO L225 Difference]: With dead ends: 2049 [2020-10-12 10:33:37,039 INFO L226 Difference]: Without dead ends: 1078 [2020-10-12 10:33:37,041 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 [2020-10-12 10:33:37,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-10-12 10:33:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1062. [2020-10-12 10:33:37,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-10-12 10:33:37,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1485 transitions. [2020-10-12 10:33:37,067 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1485 transitions. Word has length 154 [2020-10-12 10:33:37,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:37,067 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1485 transitions. [2020-10-12 10:33:37,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:37,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1485 transitions. [2020-10-12 10:33:37,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-12 10:33:37,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:37,071 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:37,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 10:33:37,072 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:37,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:37,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1065531154, now seen corresponding path program 1 times [2020-10-12 10:33:37,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:37,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [491713284] [2020-10-12 10:33:37,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:37,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:37,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:37,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:37,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:37,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:37,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-12 10:33:37,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 10:33:37,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-10-12 10:33:37,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:37,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:37,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-12 10:33:37,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 10:33:37,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:37,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:37,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:37,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:37,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:37,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:37,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:37,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:37,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:37,560 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-12 10:33:37,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [491713284] [2020-10-12 10:33:37,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:37,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:37,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088303145] [2020-10-12 10:33:37,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:37,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:37,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:37,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:37,563 INFO L87 Difference]: Start difference. First operand 1062 states and 1485 transitions. Second operand 3 states. [2020-10-12 10:33:37,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:37,793 INFO L93 Difference]: Finished difference Result 2479 states and 3573 transitions. [2020-10-12 10:33:37,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:37,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 170 [2020-10-12 10:33:37,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:37,803 INFO L225 Difference]: With dead ends: 2479 [2020-10-12 10:33:37,803 INFO L226 Difference]: Without dead ends: 1364 [2020-10-12 10:33:37,806 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 [2020-10-12 10:33:37,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2020-10-12 10:33:37,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1246. [2020-10-12 10:33:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2020-10-12 10:33:37,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1753 transitions. [2020-10-12 10:33:37,842 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1753 transitions. Word has length 170 [2020-10-12 10:33:37,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:37,843 INFO L479 AbstractCegarLoop]: Abstraction has 1246 states and 1753 transitions. [2020-10-12 10:33:37,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:37,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1753 transitions. [2020-10-12 10:33:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-12 10:33:37,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:37,848 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:37,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 10:33:37,848 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:37,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:37,849 INFO L82 PathProgramCache]: Analyzing trace with hash -474413893, now seen corresponding path program 1 times [2020-10-12 10:33:37,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:37,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148180581] [2020-10-12 10:33:37,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:37,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:37,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:38,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:38,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:38,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-12 10:33:38,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:38,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-10-12 10:33:38,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:38,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-12 10:33:38,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 10:33:38,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:38,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:38,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:38,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:38,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:38,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:38,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:38,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:38,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:38,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:38,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:33:38,309 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2020-10-12 10:33:38,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148180581] [2020-10-12 10:33:38,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:38,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:38,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749619623] [2020-10-12 10:33:38,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:38,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:38,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:38,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:38,312 INFO L87 Difference]: Start difference. First operand 1246 states and 1753 transitions. Second operand 3 states. [2020-10-12 10:33:38,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:38,360 INFO L93 Difference]: Finished difference Result 2798 states and 3936 transitions. [2020-10-12 10:33:38,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:38,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-10-12 10:33:38,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:38,369 INFO L225 Difference]: With dead ends: 2798 [2020-10-12 10:33:38,369 INFO L226 Difference]: Without dead ends: 1567 [2020-10-12 10:33:38,372 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 [2020-10-12 10:33:38,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2020-10-12 10:33:38,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1567. [2020-10-12 10:33:38,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1567 states. [2020-10-12 10:33:38,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1567 states to 1567 states and 2198 transitions. [2020-10-12 10:33:38,417 INFO L78 Accepts]: Start accepts. Automaton has 1567 states and 2198 transitions. Word has length 179 [2020-10-12 10:33:38,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:38,417 INFO L479 AbstractCegarLoop]: Abstraction has 1567 states and 2198 transitions. [2020-10-12 10:33:38,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:38,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1567 states and 2198 transitions. [2020-10-12 10:33:38,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-12 10:33:38,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:38,422 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:38,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 10:33:38,423 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:38,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:38,423 INFO L82 PathProgramCache]: Analyzing trace with hash 570978915, now seen corresponding path program 1 times [2020-10-12 10:33:38,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:38,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421592211] [2020-10-12 10:33:38,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:38,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:38,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:38,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:38,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 10:33:38,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 10:33:38,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 235 [2020-10-12 10:33:38,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 167 [2020-10-12 10:33:38,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-12 10:33:38,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 10:33:38,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:38,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:38,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:38,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:38,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:38,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:38,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:38,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:38,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:38,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:38,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2020-10-12 10:33:38,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421592211] [2020-10-12 10:33:38,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:38,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:38,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824772000] [2020-10-12 10:33:38,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:38,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:38,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:38,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:38,788 INFO L87 Difference]: Start difference. First operand 1567 states and 2198 transitions. Second operand 3 states. [2020-10-12 10:33:39,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:39,007 INFO L93 Difference]: Finished difference Result 3179 states and 4450 transitions. [2020-10-12 10:33:39,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:39,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-10-12 10:33:39,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:39,017 INFO L225 Difference]: With dead ends: 3179 [2020-10-12 10:33:39,017 INFO L226 Difference]: Without dead ends: 1627 [2020-10-12 10:33:39,021 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 [2020-10-12 10:33:39,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2020-10-12 10:33:39,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1557. [2020-10-12 10:33:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1557 states. [2020-10-12 10:33:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2178 transitions. [2020-10-12 10:33:39,072 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2178 transitions. Word has length 181 [2020-10-12 10:33:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:39,072 INFO L479 AbstractCegarLoop]: Abstraction has 1557 states and 2178 transitions. [2020-10-12 10:33:39,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2178 transitions. [2020-10-12 10:33:39,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-12 10:33:39,078 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:39,078 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:39,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 10:33:39,078 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:39,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:39,079 INFO L82 PathProgramCache]: Analyzing trace with hash 197444109, now seen corresponding path program 1 times [2020-10-12 10:33:39,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:39,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084361549] [2020-10-12 10:33:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:39,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:39,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:39,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:39,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:39,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-12 10:33:39,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 10:33:39,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-10-12 10:33:39,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:39,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 10:33:39,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-12 10:33:39,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 10:33:39,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:39,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 10:33:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 10:33:39,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 10:33:39,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 10:33:39,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 10:33:39,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 10:33:39,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 10:33:39,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 10:33:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 10:33:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 10:33:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 10:33:39,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 10:33:39,501 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-12 10:33:39,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084361549] [2020-10-12 10:33:39,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 10:33:39,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-12 10:33:39,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20133257] [2020-10-12 10:33:39,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-12 10:33:39,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 10:33:39,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-12 10:33:39,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-12 10:33:39,504 INFO L87 Difference]: Start difference. First operand 1557 states and 2178 transitions. Second operand 3 states. [2020-10-12 10:33:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 10:33:39,585 INFO L93 Difference]: Finished difference Result 4331 states and 6116 transitions. [2020-10-12 10:33:39,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-12 10:33:39,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-10-12 10:33:39,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 10:33:39,601 INFO L225 Difference]: With dead ends: 4331 [2020-10-12 10:33:39,602 INFO L226 Difference]: Without dead ends: 2789 [2020-10-12 10:33:39,607 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 [2020-10-12 10:33:39,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2020-10-12 10:33:39,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2787. [2020-10-12 10:33:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2787 states. [2020-10-12 10:33:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3941 transitions. [2020-10-12 10:33:39,732 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3941 transitions. Word has length 201 [2020-10-12 10:33:39,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 10:33:39,732 INFO L479 AbstractCegarLoop]: Abstraction has 2787 states and 3941 transitions. [2020-10-12 10:33:39,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-12 10:33:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3941 transitions. [2020-10-12 10:33:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-12 10:33:39,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 10:33:39,742 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 10:33:39,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 10:33:39,742 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 10:33:39,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 10:33:39,743 INFO L82 PathProgramCache]: Analyzing trace with hash -349816743, now seen corresponding path program 1 times [2020-10-12 10:33:39,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 10:33:39,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473213632] [2020-10-12 10:33:39,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 10:33:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 10:33:39,839 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 10:33:39,839 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 10:33:39,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 10:33:39,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 10:33:39 BoogieIcfgContainer [2020-10-12 10:33:39,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 10:33:39,888 INFO L168 Benchmark]: Toolchain (without parser) took 9612.21 ms. Allocated memory was 140.5 MB in the beginning and 440.4 MB in the end (delta: 299.9 MB). Free memory was 103.4 MB in the beginning and 385.7 MB in the end (delta: -282.3 MB). Peak memory consumption was 317.8 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:39,889 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. [2020-10-12 10:33:39,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 496.61 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.4 MB in the beginning and 178.1 MB in the end (delta: -74.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:39,890 INFO L168 Benchmark]: Boogie Preprocessor took 52.92 ms. Allocated memory is still 202.9 MB. Free memory was 178.1 MB in the beginning and 176.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:39,891 INFO L168 Benchmark]: RCFGBuilder took 744.63 ms. Allocated memory is still 202.9 MB. Free memory was 176.2 MB in the beginning and 130.5 MB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:39,892 INFO L168 Benchmark]: TraceAbstraction took 8312.71 ms. Allocated memory was 202.9 MB in the beginning and 440.4 MB in the end (delta: 237.5 MB). Free memory was 129.5 MB in the beginning and 385.7 MB in the end (delta: -256.1 MB). Peak memory consumption was 281.6 MB. Max. memory is 7.1 GB. [2020-10-12 10:33:39,895 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 496.61 ms. Allocated memory was 140.5 MB in the beginning and 202.9 MB in the end (delta: 62.4 MB). Free memory was 103.4 MB in the beginning and 178.1 MB in the end (delta: -74.7 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 52.92 ms. Allocated memory is still 202.9 MB. Free memory was 178.1 MB in the beginning and 176.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 744.63 ms. Allocated memory is still 202.9 MB. Free memory was 176.2 MB in the beginning and 130.5 MB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8312.71 ms. Allocated memory was 202.9 MB in the beginning and 440.4 MB in the end (delta: 237.5 MB). Free memory was 129.5 MB in the beginning and 385.7 MB in the end (delta: -256.1 MB). Peak memory consumption was 281.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 608]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseXor at line 356. Possible FailurePath: [L617] int __retres1 ; [L621] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_uint(); [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int __retres59 ; [L66] s__state = 12292 [L67] blastFlag = 0 [L68] tmp = __VERIFIER_nondet_int() [L69] cb = 0 [L70] ret = -1 [L71] skip = 0 [L72] tmp___0 = 0 [L73] COND TRUE s__info_callback != 0 [L74] cb = s__info_callback [L82] s__in_handshake = s__in_handshake + 1 [L83] COND FALSE !(tmp___1 - 12288) [L93] COND TRUE 1 [L95] state = s__state [L96] COND TRUE s__state == 12292 [L199] s__new_session = 1 [L200] s__state = 4096 [L201] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L206] s__server = 0 [L207] COND TRUE cb != 0 [L212] COND FALSE !(s__version - 65280 != 768) [L218] s__type = 4096 [L219] COND FALSE !(s__init_buf___0 == 0) [L237] COND FALSE !(! tmp___4) [L243] COND FALSE !(! tmp___5) [L249] s__state = 4368 [L250] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L251] s__init_num = 0 [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND TRUE s__state == 4368 [L255] s__shutdown = 0 [L256] ret = __VERIFIER_nondet_int() [L257] COND TRUE blastFlag == 0 [L258] blastFlag = 1 [L266] COND FALSE !(ret <= 0) [L271] s__state = 4384 [L272] s__init_num = 0 [L273] COND TRUE s__bbio != s__wbio [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND FALSE !(s__state == 4368) [L114] COND FALSE !(s__state == 4369) [L117] COND TRUE s__state == 4384 [L281] ret = __VERIFIER_nondet_int() [L282] COND TRUE blastFlag == 1 [L283] blastFlag = 2 [L287] COND FALSE !(ret <= 0) [L292] COND FALSE !(\read(s__hit)) [L295] s__state = 4400 [L297] s__init_num = 0 [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND FALSE !(s__state == 4368) [L114] COND FALSE !(s__state == 4369) [L117] COND FALSE !(s__state == 4384) [L120] COND FALSE !(s__state == 4385) [L123] COND TRUE s__state == 4400 [L301] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L304] ret = __VERIFIER_nondet_int() [L305] COND TRUE blastFlag == 2 [L306] blastFlag = 3 [L310] COND FALSE !(ret <= 0) [L316] ag_Y = 61087 [L317] s__state = 4416 [L318] s__init_num = 0 [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND FALSE !(s__state == 4368) [L114] COND FALSE !(s__state == 4369) [L117] COND FALSE !(s__state == 4384) [L120] COND FALSE !(s__state == 4385) [L123] COND FALSE !(s__state == 4400) [L126] COND FALSE !(s__state == 4401) [L129] COND TRUE s__state == 4416 [L322] ret = __VERIFIER_nondet_int() [L323] COND TRUE blastFlag == 3 [L324] blastFlag = 4 [L328] COND FALSE !(ret <= 0) [L333] s__state = 4432 [L334] ag_X = (unsigned short)65535 [L335] s__init_num = 0 [L336] COND FALSE !(! tmp___6) [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND FALSE !(s__state == 4368) [L114] COND FALSE !(s__state == 4369) [L117] COND FALSE !(s__state == 4384) [L120] COND FALSE !(s__state == 4385) [L123] COND FALSE !(s__state == 4400) [L126] COND FALSE !(s__state == 4401) [L129] COND FALSE !(s__state == 4416) [L132] COND FALSE !(s__state == 4417) [L135] COND TRUE s__state == 4432 [L345] ret = __VERIFIER_nondet_int() [L346] COND FALSE !(blastFlag == 5) [L351] COND FALSE !(ret <= 0) [L356] s__state = ag_X ^ ag_Y [L357] s__init_num = 0 [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND TRUE s__state == 4368 [L255] s__shutdown = 0 [L256] ret = __VERIFIER_nondet_int() [L257] COND FALSE !(blastFlag == 0) [L260] COND TRUE blastFlag == 4 [L261] blastFlag = 5 [L266] COND FALSE !(ret <= 0) [L271] s__state = 4384 [L272] s__init_num = 0 [L273] COND TRUE s__bbio != s__wbio [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND FALSE !(s__state == 4368) [L114] COND FALSE !(s__state == 4369) [L117] COND TRUE s__state == 4384 [L281] ret = __VERIFIER_nondet_int() [L282] COND FALSE !(blastFlag == 1) [L287] COND FALSE !(ret <= 0) [L292] COND FALSE !(\read(s__hit)) [L295] s__state = 4400 [L297] s__init_num = 0 [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND FALSE !(s__state == 4368) [L114] COND FALSE !(s__state == 4369) [L117] COND FALSE !(s__state == 4384) [L120] COND FALSE !(s__state == 4385) [L123] COND TRUE s__state == 4400 [L301] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L304] ret = __VERIFIER_nondet_int() [L305] COND FALSE !(blastFlag == 2) [L310] COND FALSE !(ret <= 0) [L316] ag_Y = 61087 [L317] s__state = 4416 [L318] s__init_num = 0 [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND FALSE !(s__state == 4368) [L114] COND FALSE !(s__state == 4369) [L117] COND FALSE !(s__state == 4384) [L120] COND FALSE !(s__state == 4385) [L123] COND FALSE !(s__state == 4400) [L126] COND FALSE !(s__state == 4401) [L129] COND TRUE s__state == 4416 [L322] ret = __VERIFIER_nondet_int() [L323] COND FALSE !(blastFlag == 3) [L328] COND FALSE !(ret <= 0) [L333] s__state = 4432 [L334] ag_X = (unsigned short)65535 [L335] s__init_num = 0 [L336] COND FALSE !(! tmp___6) [L566] COND FALSE !(! s__s3__tmp__reuse_message) [L595] skip = 0 [L93] COND TRUE 1 [L95] state = s__state [L96] COND FALSE !(s__state == 12292) [L99] COND FALSE !(s__state == 16384) [L102] COND FALSE !(s__state == 4096) [L105] COND FALSE !(s__state == 20480) [L108] COND FALSE !(s__state == 4099) [L111] COND FALSE !(s__state == 4368) [L114] COND FALSE !(s__state == 4369) [L117] COND FALSE !(s__state == 4384) [L120] COND FALSE !(s__state == 4385) [L123] COND FALSE !(s__state == 4400) [L126] COND FALSE !(s__state == 4401) [L129] COND FALSE !(s__state == 4416) [L132] COND FALSE !(s__state == 4417) [L135] COND TRUE s__state == 4432 [L345] ret = __VERIFIER_nondet_int() [L346] COND TRUE blastFlag == 5 [L608] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.2s, OverallIterations: 15, TraceHistogramMax: 11, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2649 SDtfs, 1017 SDslu, 1536 SDs, 0 SdLazy, 938 SolverSat, 215 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2787occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 295 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1839 NumberOfCodeBlocks, 1839 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1624 ConstructedInterpolants, 0 QuantifiedInterpolants, 467240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 2994/2994 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...