/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:25:24,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:25:24,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:25:24,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:25:24,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:25:24,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:25:24,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:25:24,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:25:24,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:25:24,824 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:25:24,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:25:24,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:25:24,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:25:24,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:25:24,829 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:25:24,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:25:24,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:25:24,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:25:24,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:25:24,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:25:24,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:25:24,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:25:24,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:25:24,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:25:24,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:25:24,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:25:24,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:25:24,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:25:24,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:25:24,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:25:24,849 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:25:24,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:25:24,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:25:24,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:25:24,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:25:24,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:25:24,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:25:24,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:25:24,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:25:24,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:25:24,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:25:24,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:25:24,885 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:25:24,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:25:24,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:25:24,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:25:24,887 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:25:24,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:25:24,888 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:25:24,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:25:24,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:25:24,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:25:24,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:25:24,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:25:24,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:25:24,889 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:25:24,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:25:24,889 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:25:24,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:25:24,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:25:24,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:25:24,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:25:24,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:25:24,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:25:24,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:25:24,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:25:24,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:25:24,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:25:24,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:25:24,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:25:24,892 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:25:24,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:25:25,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:25:25,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:25:25,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:25:25,416 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:25:25,417 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:25:25,419 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 05:25:25,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae3483d55/bc50f2f91b284fd689a32a60c5312bde/FLAG6e6229854 [2020-09-25 05:25:26,163 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:25:26,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 05:25:26,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae3483d55/bc50f2f91b284fd689a32a60c5312bde/FLAG6e6229854 [2020-09-25 05:25:26,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ae3483d55/bc50f2f91b284fd689a32a60c5312bde [2020-09-25 05:25:26,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:25:26,460 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:25:26,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:25:26,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:25:26,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:25:26,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:25:26" (1/1) ... [2020-09-25 05:25:26,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2902112a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:26, skipping insertion in model container [2020-09-25 05:25:26,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:25:26" (1/1) ... [2020-09-25 05:25:26,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:25:26,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:25:26,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:25:26,855 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:25:27,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:25:27,019 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:25:27,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27 WrapperNode [2020-09-25 05:25:27,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:25:27,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:25:27,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:25:27,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:25:27,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (1/1) ... [2020-09-25 05:25:27,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (1/1) ... [2020-09-25 05:25:27,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (1/1) ... [2020-09-25 05:25:27,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (1/1) ... [2020-09-25 05:25:27,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (1/1) ... [2020-09-25 05:25:27,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (1/1) ... [2020-09-25 05:25:27,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (1/1) ... [2020-09-25 05:25:27,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:25:27,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:25:27,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:25:27,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:25:27,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:25:27,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:25:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:25:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 05:25:27,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:25:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:25:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:25:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 05:25:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 05:25:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:25:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:25:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:25:27,330 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 05:25:28,092 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-25 05:25:28,092 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-25 05:25:28,133 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:25:28,133 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 05:25:28,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:25:28 BoogieIcfgContainer [2020-09-25 05:25:28,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:25:28,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:25:28,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:25:28,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:25:28,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:25:26" (1/3) ... [2020-09-25 05:25:28,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206e5f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:25:28, skipping insertion in model container [2020-09-25 05:25:28,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:25:27" (2/3) ... [2020-09-25 05:25:28,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206e5f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:25:28, skipping insertion in model container [2020-09-25 05:25:28,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:25:28" (3/3) ... [2020-09-25 05:25:28,152 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-25 05:25:28,164 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:25:28,175 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:25:28,198 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:25:28,232 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:25:28,233 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:25:28,233 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:25:28,233 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:25:28,233 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:25:28,233 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:25:28,233 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:25:28,234 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:25:28,262 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 05:25:28,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 05:25:28,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:28,281 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:28,282 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:28,289 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-25 05:25:28,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:28,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980257854] [2020-09-25 05:25:28,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:28,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:28,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:28,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:28,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 05:25:28,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:25:28,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 05:25:28,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:28,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:25:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 05:25:28,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 05:25:28,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 05:25:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:29,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:29,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:29,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:29,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:29,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:25:29,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:29,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:29,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:29,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:29,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:29,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:25:29,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980257854] [2020-09-25 05:25:29,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:29,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:25:29,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504290052] [2020-09-25 05:25:29,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:25:29,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:29,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:25:29,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:29,131 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 05:25:29,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:29,454 INFO L93 Difference]: Finished difference Result 635 states and 851 transitions. [2020-09-25 05:25:29,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:25:29,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 05:25:29,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:29,477 INFO L225 Difference]: With dead ends: 635 [2020-09-25 05:25:29,478 INFO L226 Difference]: Without dead ends: 334 [2020-09-25 05:25:29,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:29,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2020-09-25 05:25:29,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 320. [2020-09-25 05:25:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2020-09-25 05:25:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 380 transitions. [2020-09-25 05:25:29,561 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 380 transitions. Word has length 142 [2020-09-25 05:25:29,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:29,562 INFO L479 AbstractCegarLoop]: Abstraction has 320 states and 380 transitions. [2020-09-25 05:25:29,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:25:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 380 transitions. [2020-09-25 05:25:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 05:25:29,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:29,566 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:29,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:25:29,567 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:29,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:29,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1249677314, now seen corresponding path program 1 times [2020-09-25 05:25:29,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:29,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434790512] [2020-09-25 05:25:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:29,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:29,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:29,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:29,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:30,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:30,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 05:25:30,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:25:30,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 443 [2020-09-25 05:25:30,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:30,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:30,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:25:30,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 05:25:30,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 05:25:30,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:30,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:30,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:30,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:30,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:30,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:30,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:25:30,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:30,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:30,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:30,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:30,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:25:30,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:25:30,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434790512] [2020-09-25 05:25:30,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:30,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:25:30,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114355114] [2020-09-25 05:25:30,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:25:30,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:30,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:25:30,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:30,181 INFO L87 Difference]: Start difference. First operand 320 states and 380 transitions. Second operand 3 states. [2020-09-25 05:25:30,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:30,469 INFO L93 Difference]: Finished difference Result 578 states and 730 transitions. [2020-09-25 05:25:30,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:25:30,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2020-09-25 05:25:30,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:30,474 INFO L225 Difference]: With dead ends: 578 [2020-09-25 05:25:30,474 INFO L226 Difference]: Without dead ends: 389 [2020-09-25 05:25:30,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:30,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-09-25 05:25:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 364. [2020-09-25 05:25:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2020-09-25 05:25:30,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 432 transitions. [2020-09-25 05:25:30,502 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 432 transitions. Word has length 158 [2020-09-25 05:25:30,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:30,503 INFO L479 AbstractCegarLoop]: Abstraction has 364 states and 432 transitions. [2020-09-25 05:25:30,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:25:30,503 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 432 transitions. [2020-09-25 05:25:30,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 05:25:30,513 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:30,513 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:30,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:25:30,514 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:30,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:30,515 INFO L82 PathProgramCache]: Analyzing trace with hash -288801966, now seen corresponding path program 1 times [2020-09-25 05:25:30,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:30,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679742366] [2020-09-25 05:25:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:30,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:30,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:30,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:31,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:31,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:31,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 05:25:31,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:25:31,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 832 [2020-09-25 05:25:31,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:31,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:31,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:25:31,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 05:25:31,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 05:25:31,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:31,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:31,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:31,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:31,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:31,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:31,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:25:31,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:31,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:31,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:31,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:31,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:31,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:25:31,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679742366] [2020-09-25 05:25:31,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:31,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:25:31,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236613604] [2020-09-25 05:25:31,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:25:31,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:31,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:25:31,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:31,512 INFO L87 Difference]: Start difference. First operand 364 states and 432 transitions. Second operand 3 states. [2020-09-25 05:25:31,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:31,762 INFO L93 Difference]: Finished difference Result 657 states and 824 transitions. [2020-09-25 05:25:31,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:25:31,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-09-25 05:25:31,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:31,767 INFO L225 Difference]: With dead ends: 657 [2020-09-25 05:25:31,767 INFO L226 Difference]: Without dead ends: 421 [2020-09-25 05:25:31,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:31,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-09-25 05:25:31,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 377. [2020-09-25 05:25:31,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-09-25 05:25:31,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 450 transitions. [2020-09-25 05:25:31,805 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 450 transitions. Word has length 165 [2020-09-25 05:25:31,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:31,805 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 450 transitions. [2020-09-25 05:25:31,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:25:31,806 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 450 transitions. [2020-09-25 05:25:31,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 05:25:31,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:31,811 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:31,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:25:31,811 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:31,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:31,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1724791051, now seen corresponding path program 1 times [2020-09-25 05:25:31,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:31,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1615170325] [2020-09-25 05:25:31,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:31,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:32,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:32,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:32,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 05:25:32,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:25:32,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 415 [2020-09-25 05:25:32,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:32,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:25:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 05:25:32,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 05:25:32,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:32,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:32,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:32,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:32,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:32,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:32,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:25:32,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:32,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:32,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:32,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:32,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:32,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:32,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:25:32,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1615170325] [2020-09-25 05:25:32,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:32,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:25:32,349 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941112118] [2020-09-25 05:25:32,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:25:32,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:32,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:25:32,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:25:32,352 INFO L87 Difference]: Start difference. First operand 377 states and 450 transitions. Second operand 4 states. [2020-09-25 05:25:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:32,754 INFO L93 Difference]: Finished difference Result 938 states and 1171 transitions. [2020-09-25 05:25:32,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:25:32,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2020-09-25 05:25:32,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:32,758 INFO L225 Difference]: With dead ends: 938 [2020-09-25 05:25:32,759 INFO L226 Difference]: Without dead ends: 689 [2020-09-25 05:25:32,760 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:25:32,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2020-09-25 05:25:32,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 398. [2020-09-25 05:25:32,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-25 05:25:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 476 transitions. [2020-09-25 05:25:32,788 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 476 transitions. Word has length 167 [2020-09-25 05:25:32,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:32,788 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 476 transitions. [2020-09-25 05:25:32,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:25:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 476 transitions. [2020-09-25 05:25:32,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 05:25:32,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:32,792 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:32,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:25:32,793 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:32,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:32,793 INFO L82 PathProgramCache]: Analyzing trace with hash -2007825220, now seen corresponding path program 1 times [2020-09-25 05:25:32,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:32,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [706570577] [2020-09-25 05:25:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:32,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:32,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:33,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:33,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:33,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 05:25:33,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:25:33,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 344 [2020-09-25 05:25:33,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:33,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:25:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-25 05:25:33,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 05:25:33,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:33,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:33,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:33,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:33,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:33,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:25:33,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:33,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:33,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:33,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:25:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 05:25:33,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [706570577] [2020-09-25 05:25:33,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:33,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:25:33,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214664388] [2020-09-25 05:25:33,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:25:33,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:33,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:25:33,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:33,253 INFO L87 Difference]: Start difference. First operand 398 states and 476 transitions. Second operand 3 states. [2020-09-25 05:25:33,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:33,297 INFO L93 Difference]: Finished difference Result 713 states and 872 transitions. [2020-09-25 05:25:33,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:25:33,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 05:25:33,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:33,302 INFO L225 Difference]: With dead ends: 713 [2020-09-25 05:25:33,302 INFO L226 Difference]: Without dead ends: 443 [2020-09-25 05:25:33,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:33,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2020-09-25 05:25:33,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2020-09-25 05:25:33,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-09-25 05:25:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 528 transitions. [2020-09-25 05:25:33,324 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 528 transitions. Word has length 180 [2020-09-25 05:25:33,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:33,325 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 528 transitions. [2020-09-25 05:25:33,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:25:33,325 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 528 transitions. [2020-09-25 05:25:33,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 05:25:33,327 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:33,328 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:33,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:25:33,328 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:33,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:33,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1957933229, now seen corresponding path program 1 times [2020-09-25 05:25:33,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:33,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2018633761] [2020-09-25 05:25:33,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:33,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:33,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:33,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 05:25:33,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:25:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 05:25:33,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:33,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:25:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 05:25:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 05:25:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:33,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:33,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:33,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:33,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:33,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:33,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:25:33,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:33,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:33,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:25:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 05:25:33,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2018633761] [2020-09-25 05:25:33,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:33,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:25:33,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422411229] [2020-09-25 05:25:33,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:25:33,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:33,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:25:33,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:33,752 INFO L87 Difference]: Start difference. First operand 443 states and 528 transitions. Second operand 3 states. [2020-09-25 05:25:33,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:33,963 INFO L93 Difference]: Finished difference Result 800 states and 996 transitions. [2020-09-25 05:25:33,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:25:33,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 05:25:33,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:33,967 INFO L225 Difference]: With dead ends: 800 [2020-09-25 05:25:33,967 INFO L226 Difference]: Without dead ends: 530 [2020-09-25 05:25:33,968 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-09-25 05:25:33,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 463. [2020-09-25 05:25:33,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-25 05:25:33,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 558 transitions. [2020-09-25 05:25:33,982 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 558 transitions. Word has length 181 [2020-09-25 05:25:33,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:33,983 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 558 transitions. [2020-09-25 05:25:33,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:25:33,983 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 558 transitions. [2020-09-25 05:25:33,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 05:25:33,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:33,986 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:33,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:25:33,986 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:33,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:33,987 INFO L82 PathProgramCache]: Analyzing trace with hash 129935299, now seen corresponding path program 1 times [2020-09-25 05:25:33,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:33,987 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1543956028] [2020-09-25 05:25:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:34,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:34,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:34,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:34,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:34,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:34,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 05:25:34,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:25:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 815 [2020-09-25 05:25:34,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:34,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:25:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 05:25:34,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 05:25:34,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:34,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:34,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:34,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:34,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:34,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:34,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:25:34,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:34,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:34,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:34,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:34,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:34,933 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:25:34,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1543956028] [2020-09-25 05:25:34,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:34,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:25:34,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459380909] [2020-09-25 05:25:34,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:25:34,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:34,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:25:34,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:34,936 INFO L87 Difference]: Start difference. First operand 463 states and 558 transitions. Second operand 3 states. [2020-09-25 05:25:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:34,966 INFO L93 Difference]: Finished difference Result 1011 states and 1252 transitions. [2020-09-25 05:25:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:25:34,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2020-09-25 05:25:34,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:34,973 INFO L225 Difference]: With dead ends: 1011 [2020-09-25 05:25:34,973 INFO L226 Difference]: Without dead ends: 721 [2020-09-25 05:25:34,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2020-09-25 05:25:35,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 719. [2020-09-25 05:25:35,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2020-09-25 05:25:35,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 873 transitions. [2020-09-25 05:25:35,009 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 873 transitions. Word has length 188 [2020-09-25 05:25:35,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:35,010 INFO L479 AbstractCegarLoop]: Abstraction has 719 states and 873 transitions. [2020-09-25 05:25:35,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:25:35,010 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 873 transitions. [2020-09-25 05:25:35,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 05:25:35,016 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:35,016 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:35,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 05:25:35,017 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:35,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:35,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1932501654, now seen corresponding path program 1 times [2020-09-25 05:25:35,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:35,018 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301230783] [2020-09-25 05:25:35,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:35,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:35,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:35,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:35,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:35,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 05:25:35,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:25:35,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-09-25 05:25:35,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:35,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:25:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-09-25 05:25:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 05:25:35,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:35,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:35,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:35,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:35,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:35,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:35,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:25:35,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:35,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:35,766 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 05:25:35,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301230783] [2020-09-25 05:25:35,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:35,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:25:35,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383477686] [2020-09-25 05:25:35,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:25:35,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:35,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:25:35,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:35,769 INFO L87 Difference]: Start difference. First operand 719 states and 873 transitions. Second operand 3 states. [2020-09-25 05:25:35,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:35,794 INFO L93 Difference]: Finished difference Result 1274 states and 1572 transitions. [2020-09-25 05:25:35,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:25:35,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-09-25 05:25:35,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:35,799 INFO L225 Difference]: With dead ends: 1274 [2020-09-25 05:25:35,799 INFO L226 Difference]: Without dead ends: 728 [2020-09-25 05:25:35,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:35,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2020-09-25 05:25:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 723. [2020-09-25 05:25:35,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-09-25 05:25:35,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 873 transitions. [2020-09-25 05:25:35,823 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 873 transitions. Word has length 189 [2020-09-25 05:25:35,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:35,824 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 873 transitions. [2020-09-25 05:25:35,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:25:35,824 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 873 transitions. [2020-09-25 05:25:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 05:25:35,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:35,827 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:35,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 05:25:35,828 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:35,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:35,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1261577978, now seen corresponding path program 1 times [2020-09-25 05:25:35,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:35,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418127745] [2020-09-25 05:25:35,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:35,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:35,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:35,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:36,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:37,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:37,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 05:25:37,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:25:37,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1162 [2020-09-25 05:25:37,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:37,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:37,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:25:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 149 [2020-09-25 05:25:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 05:25:37,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:37,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:37,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:37,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:37,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:37,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:37,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:37,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:25:37,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:37,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:37,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:37,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:37,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:37,078 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:25:37,082 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418127745] [2020-09-25 05:25:37,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:37,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:25:37,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142347002] [2020-09-25 05:25:37,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:25:37,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:37,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:25:37,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:37,085 INFO L87 Difference]: Start difference. First operand 723 states and 873 transitions. Second operand 3 states. [2020-09-25 05:25:37,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:37,136 INFO L93 Difference]: Finished difference Result 1902 states and 2338 transitions. [2020-09-25 05:25:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:25:37,136 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-25 05:25:37,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:37,144 INFO L225 Difference]: With dead ends: 1902 [2020-09-25 05:25:37,144 INFO L226 Difference]: Without dead ends: 1312 [2020-09-25 05:25:37,146 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:25:37,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2020-09-25 05:25:37,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1310. [2020-09-25 05:25:37,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-09-25 05:25:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1594 transitions. [2020-09-25 05:25:37,187 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1594 transitions. Word has length 191 [2020-09-25 05:25:37,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:37,187 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1594 transitions. [2020-09-25 05:25:37,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:25:37,188 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1594 transitions. [2020-09-25 05:25:37,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 05:25:37,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:37,191 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:37,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 05:25:37,192 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:37,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:37,192 INFO L82 PathProgramCache]: Analyzing trace with hash 2059637971, now seen corresponding path program 1 times [2020-09-25 05:25:37,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:37,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460355196] [2020-09-25 05:25:37,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:37,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:37,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:37,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:37,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:37,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:37,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:37,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:38,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:39,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:39,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 05:25:39,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 05:25:39,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2407 [2020-09-25 05:25:39,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:39,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:25:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 05:25:39,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 05:25:39,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:39,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:39,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:39,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:39,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:39,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:39,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:25:39,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:39,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:39,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:39,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:39,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 05:25:39,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460355196] [2020-09-25 05:25:39,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:25:39,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-09-25 05:25:39,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371701822] [2020-09-25 05:25:39,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:25:39,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:39,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:25:39,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:25:39,704 INFO L87 Difference]: Start difference. First operand 1310 states and 1594 transitions. Second operand 4 states. [2020-09-25 05:25:39,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:39,900 INFO L93 Difference]: Finished difference Result 2383 states and 2934 transitions. [2020-09-25 05:25:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:25:39,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2020-09-25 05:25:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:39,907 INFO L225 Difference]: With dead ends: 2383 [2020-09-25 05:25:39,907 INFO L226 Difference]: Without dead ends: 1310 [2020-09-25 05:25:39,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:25:39,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2020-09-25 05:25:39,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1310. [2020-09-25 05:25:39,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1310 states. [2020-09-25 05:25:39,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1593 transitions. [2020-09-25 05:25:39,948 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1593 transitions. Word has length 192 [2020-09-25 05:25:39,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:39,948 INFO L479 AbstractCegarLoop]: Abstraction has 1310 states and 1593 transitions. [2020-09-25 05:25:39,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:25:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1593 transitions. [2020-09-25 05:25:39,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 05:25:39,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:39,952 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:39,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 05:25:39,953 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:39,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:39,953 INFO L82 PathProgramCache]: Analyzing trace with hash -1020047875, now seen corresponding path program 1 times [2020-09-25 05:25:39,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:39,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1183022958] [2020-09-25 05:25:39,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:39,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:40,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:40,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:40,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 204 [2020-09-25 05:25:40,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:25:40,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 490 [2020-09-25 05:25:40,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:40,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:25:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 05:25:40,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 05:25:40,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:25:40,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:25:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:25:40,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:25:40,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:25:40,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:25:40,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:25:40,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:25:40,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:25:40,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:25:40,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:25:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:25:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:25:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:25:40,552 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 05:25:40,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1183022958] [2020-09-25 05:25:40,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:25:40,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:25:40,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909272174] [2020-09-25 05:25:40,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:25:40,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:25:40,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:25:40,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:25:40,555 INFO L87 Difference]: Start difference. First operand 1310 states and 1593 transitions. Second operand 4 states. [2020-09-25 05:25:40,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:25:40,897 INFO L93 Difference]: Finished difference Result 3511 states and 4352 transitions. [2020-09-25 05:25:40,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:25:40,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-09-25 05:25:40,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:25:40,910 INFO L225 Difference]: With dead ends: 3511 [2020-09-25 05:25:40,910 INFO L226 Difference]: Without dead ends: 2452 [2020-09-25 05:25:40,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:25:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2020-09-25 05:25:40,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 1313. [2020-09-25 05:25:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1313 states. [2020-09-25 05:25:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1313 states to 1313 states and 1576 transitions. [2020-09-25 05:25:40,989 INFO L78 Accepts]: Start accepts. Automaton has 1313 states and 1576 transitions. Word has length 195 [2020-09-25 05:25:40,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:25:40,990 INFO L479 AbstractCegarLoop]: Abstraction has 1313 states and 1576 transitions. [2020-09-25 05:25:40,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:25:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1313 states and 1576 transitions. [2020-09-25 05:25:40,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 05:25:40,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:25:40,993 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:25:40,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 05:25:40,994 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:25:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:25:40,995 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-25 05:25:40,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:25:40,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333404144] [2020-09-25 05:25:40,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:25:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:25:41,026 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:25:41,027 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:25:41,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 05:25:41,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:25:41 BoogieIcfgContainer [2020-09-25 05:25:41,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:25:41,092 INFO L168 Benchmark]: Toolchain (without parser) took 14633.13 ms. Allocated memory was 109.1 MB in the beginning and 369.1 MB in the end (delta: 260.0 MB). Free memory was 74.0 MB in the beginning and 109.2 MB in the end (delta: -35.2 MB). Peak memory consumption was 224.9 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:41,096 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory was 91.8 MB in the beginning and 91.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 05:25:41,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 559.30 ms. Allocated memory was 109.1 MB in the beginning and 167.2 MB in the end (delta: 58.2 MB). Free memory was 73.4 MB in the beginning and 150.7 MB in the end (delta: -77.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:41,101 INFO L168 Benchmark]: Boogie Preprocessor took 72.37 ms. Allocated memory is still 167.2 MB. Free memory was 150.7 MB in the beginning and 147.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:41,102 INFO L168 Benchmark]: RCFGBuilder took 1048.54 ms. Allocated memory was 167.2 MB in the beginning and 184.5 MB in the end (delta: 17.3 MB). Free memory was 147.9 MB in the beginning and 162.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:41,108 INFO L168 Benchmark]: TraceAbstraction took 12944.30 ms. Allocated memory was 184.5 MB in the beginning and 369.1 MB in the end (delta: 184.5 MB). Free memory was 162.2 MB in the beginning and 109.2 MB in the end (delta: 53.0 MB). Peak memory consumption was 237.5 MB. Max. memory is 7.1 GB. [2020-09-25 05:25:41,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 109.1 MB. Free memory was 91.8 MB in the beginning and 91.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 559.30 ms. Allocated memory was 109.1 MB in the beginning and 167.2 MB in the end (delta: 58.2 MB). Free memory was 73.4 MB in the beginning and 150.7 MB in the end (delta: -77.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 72.37 ms. Allocated memory is still 167.2 MB. Free memory was 150.7 MB in the beginning and 147.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1048.54 ms. Allocated memory was 167.2 MB in the beginning and 184.5 MB in the end (delta: 17.3 MB). Free memory was 147.9 MB in the beginning and 162.2 MB in the end (delta: -14.4 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12944.30 ms. Allocated memory was 184.5 MB in the beginning and 369.1 MB in the end (delta: 184.5 MB). Free memory was 162.2 MB in the beginning and 109.2 MB in the end (delta: 53.0 MB). Peak memory consumption was 237.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND FALSE !((unsigned long )s__bbio != (unsigned long )s__wbio) [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.8s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4899 SDtfs, 1719 SDslu, 4345 SDs, 0 SdLazy, 1050 SolverSat, 177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1313occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 1589 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 2151 NumberOfCodeBlocks, 2151 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1937 ConstructedInterpolants, 0 QuantifiedInterpolants, 454846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 137/138 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...