/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=NARROWEST --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-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:30:17,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:30:17,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:30:17,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:30:17,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:30:17,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:30:17,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:30:17,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:30:17,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:30:17,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:30:17,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:30:17,951 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:30:17,951 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:30:17,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:30:17,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:30:17,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:30:17,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:30:17,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:30:17,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:30:17,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:30:17,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:30:17,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:30:17,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:30:17,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:30:17,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:30:17,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:30:17,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:30:17,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:30:17,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:30:17,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:30:17,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:30:17,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:30:17,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:30:17,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:30:17,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:30:17,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:30:17,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:30:17,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:30:17,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:30:17,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:30:17,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:30:17,976 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 [2020-10-13 05:30:18,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:30:18,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:30:18,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:30:18,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:30:18,016 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:30:18,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:30:18,017 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:30:18,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:30:18,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:30:18,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:30:18,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:30:18,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:30:18,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:30:18,019 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:30:18,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:30:18,019 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:30:18,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:30:18,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:30:18,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:30:18,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:30:18,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:30:18,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:30:18,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:30:18,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:30:18,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:30:18,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:30:18,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:30:18,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:30:18,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:30:18,022 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:30:18,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:30:18,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:30:18,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:30:18,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:30:18,394 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:30:18,395 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-2a.c [2020-10-13 05:30:18,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/068df5f67/9020514051144aaca8feb015a5dcebe4/FLAGfe262bd09 [2020-10-13 05:30:18,942 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:30:18,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-2a.c [2020-10-13 05:30:18,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/068df5f67/9020514051144aaca8feb015a5dcebe4/FLAGfe262bd09 [2020-10-13 05:30:19,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/068df5f67/9020514051144aaca8feb015a5dcebe4 [2020-10-13 05:30:19,291 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:30:19,293 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:30:19,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:30:19,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:30:19,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:30:19,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0aa04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19, skipping insertion in model container [2020-10-13 05:30:19,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:30:19,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:30:19,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:30:19,656 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:30:19,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:30:19,837 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:30:19,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19 WrapperNode [2020-10-13 05:30:19,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:30:19,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:30:19,839 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:30:19,839 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:30:19,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (1/1) ... [2020-10-13 05:30:19,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:30:19,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:30:19,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:30:19,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:30:19,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (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 [2020-10-13 05:30:19,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:30:19,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:30:19,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-13 05:30:19,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:30:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:30:19,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:30:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 05:30:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-13 05:30:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:30:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:30:19,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:30:20,130 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-13 05:30:20,570 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-13 05:30:20,570 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-13 05:30:20,587 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:30:20,587 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 05:30:20,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:30:20 BoogieIcfgContainer [2020-10-13 05:30:20,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:30:20,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:30:20,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:30:20,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:30:20,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:30:19" (1/3) ... [2020-10-13 05:30:20,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af1a353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:30:20, skipping insertion in model container [2020-10-13 05:30:20,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:30:19" (2/3) ... [2020-10-13 05:30:20,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af1a353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:30:20, skipping insertion in model container [2020-10-13 05:30:20,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:30:20" (3/3) ... [2020-10-13 05:30:20,601 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-2a.c [2020-10-13 05:30:20,611 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:30:20,618 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:30:20,631 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:30:20,656 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:30:20,656 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:30:20,656 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:30:20,657 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:30:20,657 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:30:20,657 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:30:20,657 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:30:20,657 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:30:20,681 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2020-10-13 05:30:20,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-13 05:30:20,689 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:20,691 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] [2020-10-13 05:30:20,691 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:20,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:20,698 INFO L82 PathProgramCache]: Analyzing trace with hash 631865998, now seen corresponding path program 1 times [2020-10-13 05:30:20,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:20,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1538612952] [2020-10-13 05:30:20,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:20,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:21,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:21,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:21,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:21,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 05:30:21,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:30:21,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 506 [2020-10-13 05:30:21,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 05:30:21,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:30:21,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 05:30:21,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:21,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:21,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:21,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:21,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:21,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:21,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:21,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:21,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:30:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:30:21,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1538612952] [2020-10-13 05:30:21,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:21,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:21,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532181084] [2020-10-13 05:30:21,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:21,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:21,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:21,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:21,474 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 3 states. [2020-10-13 05:30:21,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:21,663 INFO L93 Difference]: Finished difference Result 257 states and 432 transitions. [2020-10-13 05:30:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:21,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-10-13 05:30:21,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:21,678 INFO L225 Difference]: With dead ends: 257 [2020-10-13 05:30:21,678 INFO L226 Difference]: Without dead ends: 117 [2020-10-13 05:30:21,682 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 [2020-10-13 05:30:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-13 05:30:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-13 05:30:21,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-13 05:30:21,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 174 transitions. [2020-10-13 05:30:21,728 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 174 transitions. Word has length 29 [2020-10-13 05:30:21,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:21,728 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 174 transitions. [2020-10-13 05:30:21,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 174 transitions. [2020-10-13 05:30:21,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-13 05:30:21,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:21,731 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] [2020-10-13 05:30:21,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:30:21,731 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:21,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1718219534, now seen corresponding path program 1 times [2020-10-13 05:30:21,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:21,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137008558] [2020-10-13 05:30:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:21,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:21,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:21,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:21,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:21,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-13 05:30:21,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:30:21,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-13 05:30:21,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:21,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-13 05:30:21,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 05:30:21,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:21,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:21,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:21,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:21,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:21,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:21,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:21,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:21,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:21,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:21,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:30:21,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137008558] [2020-10-13 05:30:21,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:21,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:21,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424544474] [2020-10-13 05:30:21,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:21,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:21,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:21,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:21,947 INFO L87 Difference]: Start difference. First operand 117 states and 174 transitions. Second operand 3 states. [2020-10-13 05:30:22,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:22,091 INFO L93 Difference]: Finished difference Result 238 states and 361 transitions. [2020-10-13 05:30:22,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:22,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2020-10-13 05:30:22,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:22,094 INFO L225 Difference]: With dead ends: 238 [2020-10-13 05:30:22,094 INFO L226 Difference]: Without dead ends: 136 [2020-10-13 05:30:22,096 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 [2020-10-13 05:30:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-13 05:30:22,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 132. [2020-10-13 05:30:22,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-13 05:30:22,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 194 transitions. [2020-10-13 05:30:22,109 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 194 transitions. Word has length 41 [2020-10-13 05:30:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:22,110 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 194 transitions. [2020-10-13 05:30:22,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:22,110 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 194 transitions. [2020-10-13 05:30:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 05:30:22,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:22,113 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] [2020-10-13 05:30:22,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 05:30:22,113 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:22,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:22,114 INFO L82 PathProgramCache]: Analyzing trace with hash 483864407, now seen corresponding path program 1 times [2020-10-13 05:30:22,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:22,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1595665728] [2020-10-13 05:30:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:22,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:22,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-13 05:30:22,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:30:22,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-13 05:30:22,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:22,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:22,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-13 05:30:22,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 05:30:22,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:22,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:22,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:22,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:22,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:22,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:22,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:22,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:22,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:22,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:22,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:22,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 05:30:22,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1595665728] [2020-10-13 05:30:22,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:22,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:22,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168586305] [2020-10-13 05:30:22,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:22,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:22,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:22,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:22,345 INFO L87 Difference]: Start difference. First operand 132 states and 194 transitions. Second operand 3 states. [2020-10-13 05:30:22,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:22,481 INFO L93 Difference]: Finished difference Result 270 states and 405 transitions. [2020-10-13 05:30:22,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:22,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-10-13 05:30:22,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:22,483 INFO L225 Difference]: With dead ends: 270 [2020-10-13 05:30:22,484 INFO L226 Difference]: Without dead ends: 153 [2020-10-13 05:30:22,485 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 [2020-10-13 05:30:22,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-13 05:30:22,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 149. [2020-10-13 05:30:22,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-13 05:30:22,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 216 transitions. [2020-10-13 05:30:22,496 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 216 transitions. Word has length 55 [2020-10-13 05:30:22,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:22,496 INFO L479 AbstractCegarLoop]: Abstraction has 149 states and 216 transitions. [2020-10-13 05:30:22,496 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:22,496 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 216 transitions. [2020-10-13 05:30:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 05:30:22,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:22,499 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] [2020-10-13 05:30:22,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 05:30:22,500 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:22,500 INFO L82 PathProgramCache]: Analyzing trace with hash -245351623, now seen corresponding path program 1 times [2020-10-13 05:30:22,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:22,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809125941] [2020-10-13 05:30:22,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:22,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:22,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 05:30:22,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:30:22,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-13 05:30:22,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:22,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:22,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-13 05:30:22,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 05:30:22,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:22,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:22,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:22,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:22,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:22,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:22,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:22,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:22,733 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 05:30:22,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809125941] [2020-10-13 05:30:22,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:22,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:22,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369575343] [2020-10-13 05:30:22,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:22,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:22,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:22,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:22,736 INFO L87 Difference]: Start difference. First operand 149 states and 216 transitions. Second operand 3 states. [2020-10-13 05:30:22,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:22,758 INFO L93 Difference]: Finished difference Result 304 states and 441 transitions. [2020-10-13 05:30:22,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:22,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-10-13 05:30:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:22,761 INFO L225 Difference]: With dead ends: 304 [2020-10-13 05:30:22,761 INFO L226 Difference]: Without dead ends: 170 [2020-10-13 05:30:22,763 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 [2020-10-13 05:30:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-13 05:30:22,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-13 05:30:22,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-13 05:30:22,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 243 transitions. [2020-10-13 05:30:22,773 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 243 transitions. Word has length 72 [2020-10-13 05:30:22,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:22,773 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 243 transitions. [2020-10-13 05:30:22,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:22,773 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 243 transitions. [2020-10-13 05:30:22,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 05:30:22,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:22,775 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] [2020-10-13 05:30:22,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 05:30:22,776 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:22,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:22,776 INFO L82 PathProgramCache]: Analyzing trace with hash -385900233, now seen corresponding path program 1 times [2020-10-13 05:30:22,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:22,777 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [494554387] [2020-10-13 05:30:22,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:22,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 05:30:22,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:30:22,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-13 05:30:22,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-13 05:30:22,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 05:30:22,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:22,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:22,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:22,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:22,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:22,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:22,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:22,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:22,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:22,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:22,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:22,972 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-13 05:30:22,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [494554387] [2020-10-13 05:30:22,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:22,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:22,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724749050] [2020-10-13 05:30:22,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:22,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:22,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:22,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:22,974 INFO L87 Difference]: Start difference. First operand 170 states and 243 transitions. Second operand 3 states. [2020-10-13 05:30:23,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:23,162 INFO L93 Difference]: Finished difference Result 375 states and 555 transitions. [2020-10-13 05:30:23,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:23,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-10-13 05:30:23,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:23,165 INFO L225 Difference]: With dead ends: 375 [2020-10-13 05:30:23,166 INFO L226 Difference]: Without dead ends: 219 [2020-10-13 05:30:23,168 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 [2020-10-13 05:30:23,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-10-13 05:30:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 211. [2020-10-13 05:30:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-10-13 05:30:23,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 293 transitions. [2020-10-13 05:30:23,184 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 293 transitions. Word has length 72 [2020-10-13 05:30:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:23,185 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 293 transitions. [2020-10-13 05:30:23,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 293 transitions. [2020-10-13 05:30:23,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 05:30:23,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:23,188 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] [2020-10-13 05:30:23,188 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 05:30:23,188 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:23,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:23,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2103628729, now seen corresponding path program 1 times [2020-10-13 05:30:23,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:23,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024119643] [2020-10-13 05:30:23,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:23,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:23,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:23,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:23,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:23,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 05:30:23,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:30:23,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 05:30:23,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:23,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-13 05:30:23,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 05:30:23,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:23,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:23,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:23,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:23,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:23,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:23,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:23,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:23,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:23,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:23,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-13 05:30:23,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024119643] [2020-10-13 05:30:23,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:23,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:23,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907054138] [2020-10-13 05:30:23,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:23,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:23,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:23,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:23,425 INFO L87 Difference]: Start difference. First operand 211 states and 293 transitions. Second operand 3 states. [2020-10-13 05:30:23,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:23,553 INFO L93 Difference]: Finished difference Result 430 states and 607 transitions. [2020-10-13 05:30:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:23,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-10-13 05:30:23,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:23,556 INFO L225 Difference]: With dead ends: 430 [2020-10-13 05:30:23,556 INFO L226 Difference]: Without dead ends: 234 [2020-10-13 05:30:23,557 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 [2020-10-13 05:30:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-13 05:30:23,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2020-10-13 05:30:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-13 05:30:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 317 transitions. [2020-10-13 05:30:23,565 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 317 transitions. Word has length 72 [2020-10-13 05:30:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:23,565 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 317 transitions. [2020-10-13 05:30:23,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 317 transitions. [2020-10-13 05:30:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-13 05:30:23,568 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:23,568 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] [2020-10-13 05:30:23,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 05:30:23,568 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:23,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:23,569 INFO L82 PathProgramCache]: Analyzing trace with hash -711729521, now seen corresponding path program 1 times [2020-10-13 05:30:23,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:23,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496077497] [2020-10-13 05:30:23,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:23,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:23,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:23,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:23,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:23,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 05:30:23,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:30:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-13 05:30:23,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-13 05:30:23,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 05:30:23,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:23,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:23,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:23,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:23,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:23,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:23,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 05:30:23,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:23,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:23,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-13 05:30:23,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496077497] [2020-10-13 05:30:23,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:23,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:23,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328166074] [2020-10-13 05:30:23,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:23,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:23,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:23,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:23,765 INFO L87 Difference]: Start difference. First operand 230 states and 317 transitions. Second operand 3 states. [2020-10-13 05:30:23,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:23,897 INFO L93 Difference]: Finished difference Result 469 states and 657 transitions. [2020-10-13 05:30:23,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:23,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-10-13 05:30:23,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:23,899 INFO L225 Difference]: With dead ends: 469 [2020-10-13 05:30:23,899 INFO L226 Difference]: Without dead ends: 254 [2020-10-13 05:30:23,900 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 [2020-10-13 05:30:23,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-10-13 05:30:23,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 251. [2020-10-13 05:30:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-13 05:30:23,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 343 transitions. [2020-10-13 05:30:23,909 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 343 transitions. Word has length 88 [2020-10-13 05:30:23,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:23,909 INFO L479 AbstractCegarLoop]: Abstraction has 251 states and 343 transitions. [2020-10-13 05:30:23,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:23,910 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 343 transitions. [2020-10-13 05:30:23,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-13 05:30:23,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:23,912 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] [2020-10-13 05:30:23,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 05:30:23,912 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:23,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:23,913 INFO L82 PathProgramCache]: Analyzing trace with hash 621459655, now seen corresponding path program 1 times [2020-10-13 05:30:23,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:23,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [654558008] [2020-10-13 05:30:23,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:23,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-13 05:30:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:30:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-13 05:30:24,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 05:30:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 05:30:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:24,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:24,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:24,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:24,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:24,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:24,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:24,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:24,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:24,153 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-13 05:30:24,154 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [654558008] [2020-10-13 05:30:24,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:24,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:24,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756680427] [2020-10-13 05:30:24,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:24,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:24,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:24,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:24,156 INFO L87 Difference]: Start difference. First operand 251 states and 343 transitions. Second operand 3 states. [2020-10-13 05:30:24,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:24,194 INFO L93 Difference]: Finished difference Result 466 states and 640 transitions. [2020-10-13 05:30:24,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:24,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2020-10-13 05:30:24,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:24,198 INFO L225 Difference]: With dead ends: 466 [2020-10-13 05:30:24,198 INFO L226 Difference]: Without dead ends: 464 [2020-10-13 05:30:24,199 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 [2020-10-13 05:30:24,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-10-13 05:30:24,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2020-10-13 05:30:24,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2020-10-13 05:30:24,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 638 transitions. [2020-10-13 05:30:24,214 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 638 transitions. Word has length 108 [2020-10-13 05:30:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:24,215 INFO L479 AbstractCegarLoop]: Abstraction has 464 states and 638 transitions. [2020-10-13 05:30:24,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:24,215 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 638 transitions. [2020-10-13 05:30:24,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 05:30:24,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:24,216 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] [2020-10-13 05:30:24,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 05:30:24,217 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:24,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:24,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2052471451, now seen corresponding path program 1 times [2020-10-13 05:30:24,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:24,218 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039215784] [2020-10-13 05:30:24,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:24,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:24,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-13 05:30:24,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:30:24,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-13 05:30:24,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:24,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 05:30:24,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 05:30:24,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:24,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:24,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:24,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:24,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:24,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 05:30:24,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:24,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:24,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:24,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:24,373 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 05:30:24,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039215784] [2020-10-13 05:30:24,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:24,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:24,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562864749] [2020-10-13 05:30:24,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:24,375 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:24,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:24,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:24,375 INFO L87 Difference]: Start difference. First operand 464 states and 638 transitions. Second operand 3 states. [2020-10-13 05:30:24,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:24,398 INFO L93 Difference]: Finished difference Result 939 states and 1291 transitions. [2020-10-13 05:30:24,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:24,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-10-13 05:30:24,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:24,401 INFO L225 Difference]: With dead ends: 939 [2020-10-13 05:30:24,402 INFO L226 Difference]: Without dead ends: 490 [2020-10-13 05:30:24,403 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 [2020-10-13 05:30:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-10-13 05:30:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2020-10-13 05:30:24,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-10-13 05:30:24,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 671 transitions. [2020-10-13 05:30:24,415 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 671 transitions. Word has length 109 [2020-10-13 05:30:24,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:24,416 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 671 transitions. [2020-10-13 05:30:24,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:24,416 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 671 transitions. [2020-10-13 05:30:24,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-13 05:30:24,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:24,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:30:24,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 05:30:24,418 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:24,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:24,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1792169458, now seen corresponding path program 1 times [2020-10-13 05:30:24,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:24,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79667251] [2020-10-13 05:30:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:24,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:24,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-13 05:30:24,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:30:24,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-13 05:30:24,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 57 [2020-10-13 05:30:24,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 05:30:24,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:24,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:24,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:24,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:24,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:24,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:24,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:24,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:24,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:24,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:24,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:24,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2020-10-13 05:30:24,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79667251] [2020-10-13 05:30:24,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:24,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:24,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141464219] [2020-10-13 05:30:24,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:24,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:24,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:24,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:24,752 INFO L87 Difference]: Start difference. First operand 490 states and 671 transitions. Second operand 3 states. [2020-10-13 05:30:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:24,940 INFO L93 Difference]: Finished difference Result 1043 states and 1472 transitions. [2020-10-13 05:30:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:24,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-10-13 05:30:24,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:24,944 INFO L225 Difference]: With dead ends: 1043 [2020-10-13 05:30:24,945 INFO L226 Difference]: Without dead ends: 592 [2020-10-13 05:30:24,946 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 [2020-10-13 05:30:24,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-10-13 05:30:24,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 568. [2020-10-13 05:30:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2020-10-13 05:30:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 805 transitions. [2020-10-13 05:30:24,976 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 805 transitions. Word has length 152 [2020-10-13 05:30:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:24,976 INFO L479 AbstractCegarLoop]: Abstraction has 568 states and 805 transitions. [2020-10-13 05:30:24,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:24,977 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 805 transitions. [2020-10-13 05:30:24,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 05:30:24,980 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:24,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:30:24,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 05:30:24,981 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:24,981 INFO L82 PathProgramCache]: Analyzing trace with hash 464043678, now seen corresponding path program 1 times [2020-10-13 05:30:24,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:24,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966880802] [2020-10-13 05:30:24,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:25,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:25,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:25,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:25,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-13 05:30:25,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:30:25,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-13 05:30:25,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 05:30:25,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 05:30:25,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:25,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:25,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:25,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:25,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:25,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:25,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:25,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:25,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:25,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:25,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:25,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:30:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-13 05:30:25,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966880802] [2020-10-13 05:30:25,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:25,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:25,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210434633] [2020-10-13 05:30:25,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:25,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:25,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:25,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:25,384 INFO L87 Difference]: Start difference. First operand 568 states and 805 transitions. Second operand 3 states. [2020-10-13 05:30:25,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:25,559 INFO L93 Difference]: Finished difference Result 1195 states and 1726 transitions. [2020-10-13 05:30:25,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:25,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-10-13 05:30:25,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:25,563 INFO L225 Difference]: With dead ends: 1195 [2020-10-13 05:30:25,563 INFO L226 Difference]: Without dead ends: 664 [2020-10-13 05:30:25,565 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 [2020-10-13 05:30:25,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2020-10-13 05:30:25,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 646. [2020-10-13 05:30:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2020-10-13 05:30:25,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 925 transitions. [2020-10-13 05:30:25,583 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 925 transitions. Word has length 176 [2020-10-13 05:30:25,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:25,583 INFO L479 AbstractCegarLoop]: Abstraction has 646 states and 925 transitions. [2020-10-13 05:30:25,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 925 transitions. [2020-10-13 05:30:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-13 05:30:25,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:25,586 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 6, 6, 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] [2020-10-13 05:30:25,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 05:30:25,587 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:25,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:25,587 INFO L82 PathProgramCache]: Analyzing trace with hash -91263174, now seen corresponding path program 1 times [2020-10-13 05:30:25,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:25,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536509941] [2020-10-13 05:30:25,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:25,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:25,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:25,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:25,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:26,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:26,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-13 05:30:26,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:30:26,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 416 [2020-10-13 05:30:26,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-13 05:30:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 05:30:26,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:26,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:26,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:26,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:26,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:26,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:26,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:26,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:26,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:26,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:26,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:26,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:26,095 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-13 05:30:26,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536509941] [2020-10-13 05:30:26,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:26,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:26,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331528748] [2020-10-13 05:30:26,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:26,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:26,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:26,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:26,097 INFO L87 Difference]: Start difference. First operand 646 states and 925 transitions. Second operand 3 states. [2020-10-13 05:30:26,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:26,263 INFO L93 Difference]: Finished difference Result 1335 states and 1946 transitions. [2020-10-13 05:30:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:26,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2020-10-13 05:30:26,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:26,267 INFO L225 Difference]: With dead ends: 1335 [2020-10-13 05:30:26,268 INFO L226 Difference]: Without dead ends: 644 [2020-10-13 05:30:26,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:26,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-10-13 05:30:26,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2020-10-13 05:30:26,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 644 states. [2020-10-13 05:30:26,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 919 transitions. [2020-10-13 05:30:26,286 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 919 transitions. Word has length 178 [2020-10-13 05:30:26,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:26,286 INFO L479 AbstractCegarLoop]: Abstraction has 644 states and 919 transitions. [2020-10-13 05:30:26,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:26,287 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 919 transitions. [2020-10-13 05:30:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-13 05:30:26,289 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:26,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:30:26,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 05:30:26,290 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:26,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:26,290 INFO L82 PathProgramCache]: Analyzing trace with hash -12757669, now seen corresponding path program 1 times [2020-10-13 05:30:26,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:26,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053290367] [2020-10-13 05:30:26,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:26,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:26,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:26,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 05:30:26,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:26,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 05:30:26,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:26,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:26,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-13 05:30:26,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 05:30:26,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:26,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:26,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:26,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:26,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:26,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:26,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:26,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:26,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:26,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:26,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:30:26,478 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 373 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2020-10-13 05:30:26,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053290367] [2020-10-13 05:30:26,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:26,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:26,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912182660] [2020-10-13 05:30:26,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:26,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:26,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:26,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:26,481 INFO L87 Difference]: Start difference. First operand 644 states and 919 transitions. Second operand 3 states. [2020-10-13 05:30:26,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:26,524 INFO L93 Difference]: Finished difference Result 1537 states and 2205 transitions. [2020-10-13 05:30:26,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:26,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-10-13 05:30:26,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:26,530 INFO L225 Difference]: With dead ends: 1537 [2020-10-13 05:30:26,530 INFO L226 Difference]: Without dead ends: 934 [2020-10-13 05:30:26,531 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 [2020-10-13 05:30:26,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2020-10-13 05:30:26,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2020-10-13 05:30:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 934 states. [2020-10-13 05:30:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1336 transitions. [2020-10-13 05:30:26,554 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1336 transitions. Word has length 197 [2020-10-13 05:30:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:26,555 INFO L479 AbstractCegarLoop]: Abstraction has 934 states and 1336 transitions. [2020-10-13 05:30:26,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1336 transitions. [2020-10-13 05:30:26,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-13 05:30:26,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:26,559 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:30:26,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 05:30:26,559 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:26,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:26,560 INFO L82 PathProgramCache]: Analyzing trace with hash -2056376655, now seen corresponding path program 1 times [2020-10-13 05:30:26,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:26,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770511688] [2020-10-13 05:30:26,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:26,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:26,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:26,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-13 05:30:26,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:26,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-13 05:30:26,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:26,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:26,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 05:30:26,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-13 05:30:26,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:30:26,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:26,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:26,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:26,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:26,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:26,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:26,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:26,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:26,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:26,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:30:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2020-10-13 05:30:26,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770511688] [2020-10-13 05:30:26,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:26,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:26,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200067761] [2020-10-13 05:30:26,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:26,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:26,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:26,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:26,921 INFO L87 Difference]: Start difference. First operand 934 states and 1336 transitions. Second operand 3 states. [2020-10-13 05:30:26,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:26,958 INFO L93 Difference]: Finished difference Result 2136 states and 3061 transitions. [2020-10-13 05:30:26,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:26,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2020-10-13 05:30:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:26,965 INFO L225 Difference]: With dead ends: 2136 [2020-10-13 05:30:26,965 INFO L226 Difference]: Without dead ends: 1243 [2020-10-13 05:30:26,967 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 [2020-10-13 05:30:26,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2020-10-13 05:30:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1243. [2020-10-13 05:30:26,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1243 states. [2020-10-13 05:30:27,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1774 transitions. [2020-10-13 05:30:27,004 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1774 transitions. Word has length 199 [2020-10-13 05:30:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:27,004 INFO L479 AbstractCegarLoop]: Abstraction has 1243 states and 1774 transitions. [2020-10-13 05:30:27,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:27,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1774 transitions. [2020-10-13 05:30:27,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-13 05:30:27,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:27,009 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] [2020-10-13 05:30:27,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 05:30:27,009 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:27,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:27,009 INFO L82 PathProgramCache]: Analyzing trace with hash 197444109, now seen corresponding path program 1 times [2020-10-13 05:30:27,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:27,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561098274] [2020-10-13 05:30:27,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:27,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:27,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:27,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:27,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:27,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-13 05:30:27,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:30:27,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-10-13 05:30:27,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:27,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:30:27,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-13 05:30:27,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 05:30:27,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:30:27,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:30:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:30:27,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:30:27,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:30:27,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 05:30:27,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:30:27,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 05:30:27,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:30:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:30:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:30:27,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:30:27,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:30:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-10-13 05:30:27,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561098274] [2020-10-13 05:30:27,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:30:27,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 05:30:27,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794043340] [2020-10-13 05:30:27,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 05:30:27,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:30:27,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 05:30:27,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 05:30:27,527 INFO L87 Difference]: Start difference. First operand 1243 states and 1774 transitions. Second operand 3 states. [2020-10-13 05:30:27,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:30:27,817 INFO L93 Difference]: Finished difference Result 2637 states and 3780 transitions. [2020-10-13 05:30:27,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 05:30:27,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-10-13 05:30:27,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:30:27,828 INFO L225 Difference]: With dead ends: 2637 [2020-10-13 05:30:27,828 INFO L226 Difference]: Without dead ends: 1435 [2020-10-13 05:30:27,830 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 [2020-10-13 05:30:27,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2020-10-13 05:30:27,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1383. [2020-10-13 05:30:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1383 states. [2020-10-13 05:30:27,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1934 transitions. [2020-10-13 05:30:27,883 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1934 transitions. Word has length 201 [2020-10-13 05:30:27,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:30:27,884 INFO L479 AbstractCegarLoop]: Abstraction has 1383 states and 1934 transitions. [2020-10-13 05:30:27,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 05:30:27,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1934 transitions. [2020-10-13 05:30:27,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-13 05:30:27,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:30:27,892 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] [2020-10-13 05:30:27,893 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 05:30:27,893 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:30:27,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:30:27,894 INFO L82 PathProgramCache]: Analyzing trace with hash -349816743, now seen corresponding path program 1 times [2020-10-13 05:30:27,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:30:27,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [56290768] [2020-10-13 05:30:27,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:30:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 05:30:27,945 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 05:30:27,945 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 05:30:27,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 05:30:27,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 05:30:27 BoogieIcfgContainer [2020-10-13 05:30:27,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 05:30:27,994 INFO L168 Benchmark]: Toolchain (without parser) took 8700.24 ms. Allocated memory was 138.4 MB in the beginning and 479.7 MB in the end (delta: 341.3 MB). Free memory was 100.2 MB in the beginning and 405.4 MB in the end (delta: -305.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-10-13 05:30:27,995 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 05:30:27,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.67 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.0 MB in the beginning and 177.0 MB in the end (delta: -76.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-10-13 05:30:27,996 INFO L168 Benchmark]: Boogie Preprocessor took 54.77 ms. Allocated memory is still 201.3 MB. Free memory was 177.0 MB in the beginning and 174.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-13 05:30:27,997 INFO L168 Benchmark]: RCFGBuilder took 698.40 ms. Allocated memory is still 201.3 MB. Free memory was 174.8 MB in the beginning and 129.6 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 7.1 GB. [2020-10-13 05:30:27,998 INFO L168 Benchmark]: TraceAbstraction took 7397.21 ms. Allocated memory was 201.3 MB in the beginning and 479.7 MB in the end (delta: 278.4 MB). Free memory was 128.9 MB in the beginning and 405.4 MB in the end (delta: -276.5 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-13 05:30:28,001 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 138.4 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 544.67 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 100.0 MB in the beginning and 177.0 MB in the end (delta: -76.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.77 ms. Allocated memory is still 201.3 MB. Free memory was 177.0 MB in the beginning and 174.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 698.40 ms. Allocated memory is still 201.3 MB. Free memory was 174.8 MB in the beginning and 129.6 MB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7397.21 ms. Allocated memory was 201.3 MB in the beginning and 479.7 MB in the end (delta: 278.4 MB). Free memory was 128.9 MB in the beginning and 405.4 MB in the end (delta: -276.5 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 607]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseXor at line 355. Possible FailurePath: [L616] int __retres1 ; [L620] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y = __VERIFIER_nondet_int(); [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 [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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 [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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 [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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] s__state = 4416 [L317] s__init_num = 0 [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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 [L321] ret = __VERIFIER_nondet_int() [L322] COND TRUE blastFlag == 3 [L323] blastFlag = 4 [L327] COND FALSE !(ret <= 0) [L332] s__state = 4432 [L333] ag_X = (unsigned short)65535 [L334] s__init_num = 0 [L335] COND FALSE !(! tmp___6) [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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 [L344] ret = __VERIFIER_nondet_int() [L345] COND FALSE !(blastFlag == 5) [L350] COND FALSE !(ret <= 0) [L355] s__state = ag_X ^ ag_Y [L356] s__init_num = 0 [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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 [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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 [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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] s__state = 4416 [L317] s__init_num = 0 [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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 [L321] ret = __VERIFIER_nondet_int() [L322] COND FALSE !(blastFlag == 3) [L327] COND FALSE !(ret <= 0) [L332] s__state = 4432 [L333] ag_X = (unsigned short)65535 [L334] s__init_num = 0 [L335] COND FALSE !(! tmp___6) [L565] COND FALSE !(! s__s3__tmp__reuse_message) [L594] 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 [L344] ret = __VERIFIER_nondet_int() [L345] COND TRUE blastFlag == 5 [L607] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 133 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.2s, OverallIterations: 16, TraceHistogramMax: 11, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2681 SDtfs, 834 SDslu, 1528 SDs, 0 SdLazy, 1106 SolverSat, 234 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1383occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 117 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1950 NumberOfCodeBlocks, 1950 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1734 ConstructedInterpolants, 0 QuantifiedInterpolants, 487852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 3310/3310 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...