/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=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:47:57,891 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:47:57,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:47:57,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:47:57,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:47:57,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:47:57,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:47:57,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:47:57,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:47:57,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:47:57,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:47:57,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:47:57,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:47:57,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:47:57,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:47:57,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:47:57,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:47:57,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:47:57,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:47:57,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:47:57,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:47:57,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:47:57,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:47:57,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:47:57,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:47:57,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:47:57,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:47:57,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:47:57,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:47:57,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:47:57,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:47:57,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:47:57,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:47:57,970 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:47:57,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:47:57,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:47:57,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:47:57,974 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:47:57,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:47:57,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:47:57,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:47:57,978 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 07:47:58,042 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:47:58,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:47:58,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:47:58,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:47:58,044 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:47:58,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:47:58,048 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:47:58,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:47:58,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:47:58,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:47:58,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:47:58,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:47:58,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:47:58,049 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:47:58,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:47:58,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:47:58,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:47:58,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:47:58,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:47:58,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:47:58,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:47:58,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:47:58,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:47:58,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:47:58,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:47:58,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:47:58,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:47:58,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:47:58,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:47:58,056 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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;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=0.8;log-additional-information=true; [2020-09-25 07:47:58,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:47:58,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:47:58,616 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:47:58,618 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:47:58,620 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:47:58,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 07:47:58,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2e8d659c/97b87952764a4222b29eaab668a3dcb6/FLAGdd3c20ec7 [2020-09-25 07:47:59,302 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:47:59,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-25 07:47:59,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2e8d659c/97b87952764a4222b29eaab668a3dcb6/FLAGdd3c20ec7 [2020-09-25 07:47:59,582 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b2e8d659c/97b87952764a4222b29eaab668a3dcb6 [2020-09-25 07:47:59,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:47:59,600 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:47:59,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:47:59,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:47:59,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:47:59,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:59" (1/1) ... [2020-09-25 07:47:59,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc704b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:47:59, skipping insertion in model container [2020-09-25 07:47:59,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:47:59" (1/1) ... [2020-09-25 07:47:59,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:47:59,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:47:59,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:47:59,949 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:48:00,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:48:00,136 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:48:00,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00 WrapperNode [2020-09-25 07:48:00,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:48:00,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:48:00,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:48:00,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:48:00,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (1/1) ... [2020-09-25 07:48:00,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (1/1) ... [2020-09-25 07:48:00,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (1/1) ... [2020-09-25 07:48:00,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (1/1) ... [2020-09-25 07:48:00,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (1/1) ... [2020-09-25 07:48:00,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (1/1) ... [2020-09-25 07:48:00,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (1/1) ... [2020-09-25 07:48:00,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:48:00,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:48:00,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:48:00,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:48:00,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (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 07:48:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:48:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:48:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 07:48:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:48:00,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:48:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 07:48:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:48:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 07:48:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 07:48:00,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:48:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:48:00,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:48:00,487 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 07:48:01,124 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 07:48:01,124 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 07:48:01,151 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:48:01,152 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:48:01,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:48:01 BoogieIcfgContainer [2020-09-25 07:48:01,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:48:01,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:48:01,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:48:01,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:48:01,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:47:59" (1/3) ... [2020-09-25 07:48:01,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ee5fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:48:01, skipping insertion in model container [2020-09-25 07:48:01,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:48:00" (2/3) ... [2020-09-25 07:48:01,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ee5fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:48:01, skipping insertion in model container [2020-09-25 07:48:01,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:48:01" (3/3) ... [2020-09-25 07:48:01,170 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-09-25 07:48:01,182 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:48:01,194 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:48:01,217 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:48:01,254 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:48:01,254 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:48:01,254 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:48:01,254 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:48:01,254 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:48:01,255 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:48:01,255 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:48:01,255 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:48:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-09-25 07:48:01,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:48:01,306 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:01,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:01,308 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:01,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:01,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-09-25 07:48:01,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:01,327 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926286043] [2020-09-25 07:48:01,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:01,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:02,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:02,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:02,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:02,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 07:48:02,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:48:02,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1106 [2020-09-25 07:48:02,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:02,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:02,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:02,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-09-25 07:48:02,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 07:48:02,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:48:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:02,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:02,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:02,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:02,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:02,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:48:02,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:02,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:02,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:02,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:02,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:48:02,953 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 07:48:02,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926286043] [2020-09-25 07:48:02,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:02,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:02,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668201825] [2020-09-25 07:48:02,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:02,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:02,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:02,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:02,989 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 3 states. [2020-09-25 07:48:03,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:03,156 INFO L93 Difference]: Finished difference Result 859 states and 1116 transitions. [2020-09-25 07:48:03,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:03,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-09-25 07:48:03,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:03,183 INFO L225 Difference]: With dead ends: 859 [2020-09-25 07:48:03,183 INFO L226 Difference]: Without dead ends: 542 [2020-09-25 07:48:03,190 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 07:48:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-09-25 07:48:03,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2020-09-25 07:48:03,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-09-25 07:48:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 648 transitions. [2020-09-25 07:48:03,300 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 648 transitions. Word has length 167 [2020-09-25 07:48:03,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:03,301 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 648 transitions. [2020-09-25 07:48:03,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:03,301 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 648 transitions. [2020-09-25 07:48:03,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 07:48:03,307 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:03,307 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:03,308 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:48:03,308 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:03,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:03,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1853292792, now seen corresponding path program 1 times [2020-09-25 07:48:03,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:03,309 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803771940] [2020-09-25 07:48:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:03,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:03,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:03,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:03,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:03,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:05,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 07:48:05,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:48:05,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1719 [2020-09-25 07:48:05,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:05,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:05,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:05,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 07:48:05,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:48:05,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:48:05,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:05,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:05,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:05,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:05,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:48:05,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:05,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:05,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:05,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:05,241 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:48:05,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803771940] [2020-09-25 07:48:05,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:05,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:05,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255255732] [2020-09-25 07:48:05,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:05,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:05,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:05,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:05,258 INFO L87 Difference]: Start difference. First operand 542 states and 648 transitions. Second operand 3 states. [2020-09-25 07:48:05,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:05,376 INFO L93 Difference]: Finished difference Result 935 states and 1148 transitions. [2020-09-25 07:48:05,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:05,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-25 07:48:05,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:05,385 INFO L225 Difference]: With dead ends: 935 [2020-09-25 07:48:05,385 INFO L226 Difference]: Without dead ends: 735 [2020-09-25 07:48:05,394 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 07:48:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-09-25 07:48:05,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2020-09-25 07:48:05,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2020-09-25 07:48:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 891 transitions. [2020-09-25 07:48:05,450 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 891 transitions. Word has length 187 [2020-09-25 07:48:05,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:05,452 INFO L479 AbstractCegarLoop]: Abstraction has 735 states and 891 transitions. [2020-09-25 07:48:05,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 891 transitions. [2020-09-25 07:48:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-25 07:48:05,462 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:05,463 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:05,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:48:05,463 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:05,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:05,464 INFO L82 PathProgramCache]: Analyzing trace with hash -2121553579, now seen corresponding path program 1 times [2020-09-25 07:48:05,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:05,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785277362] [2020-09-25 07:48:05,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:05,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:05,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 07:48:06,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:48:06,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1292 [2020-09-25 07:48:06,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-09-25 07:48:06,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:48:06,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:06,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:06,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:06,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:06,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:06,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:06,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:06,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:06,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:06,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:06,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:06,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:06,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:06,887 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 07:48:06,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785277362] [2020-09-25 07:48:06,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:06,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:06,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813229835] [2020-09-25 07:48:06,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:06,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:06,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:06,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:06,892 INFO L87 Difference]: Start difference. First operand 735 states and 891 transitions. Second operand 3 states. [2020-09-25 07:48:06,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:06,973 INFO L93 Difference]: Finished difference Result 1321 states and 1634 transitions. [2020-09-25 07:48:06,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:06,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-09-25 07:48:06,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:06,980 INFO L225 Difference]: With dead ends: 1321 [2020-09-25 07:48:06,980 INFO L226 Difference]: Without dead ends: 928 [2020-09-25 07:48:06,981 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 07:48:06,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2020-09-25 07:48:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2020-09-25 07:48:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-09-25 07:48:07,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1135 transitions. [2020-09-25 07:48:07,015 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1135 transitions. Word has length 208 [2020-09-25 07:48:07,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:07,016 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1135 transitions. [2020-09-25 07:48:07,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:07,016 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1135 transitions. [2020-09-25 07:48:07,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-09-25 07:48:07,021 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:07,021 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:07,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:48:07,021 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:07,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:07,022 INFO L82 PathProgramCache]: Analyzing trace with hash -951989695, now seen corresponding path program 1 times [2020-09-25 07:48:07,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:07,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387929110] [2020-09-25 07:48:07,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:07,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:07,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:08,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:08,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:10,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:10,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 07:48:10,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:48:10,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3456 [2020-09-25 07:48:10,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:10,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 214 [2020-09-25 07:48:10,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 07:48:10,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:10,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:10,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:10,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:10,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:10,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:10,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:10,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:10,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:10,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:10,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:10,636 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 07:48:10,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387929110] [2020-09-25 07:48:10,637 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:10,637 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:10,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578304297] [2020-09-25 07:48:10,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:10,638 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:10,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:10,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:10,639 INFO L87 Difference]: Start difference. First operand 928 states and 1135 transitions. Second operand 3 states. [2020-09-25 07:48:10,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:10,716 INFO L93 Difference]: Finished difference Result 1707 states and 2122 transitions. [2020-09-25 07:48:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:10,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 232 [2020-09-25 07:48:10,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:10,723 INFO L225 Difference]: With dead ends: 1707 [2020-09-25 07:48:10,724 INFO L226 Difference]: Without dead ends: 1121 [2020-09-25 07:48:10,726 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 07:48:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1121 states. [2020-09-25 07:48:10,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1121 to 1121. [2020-09-25 07:48:10,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1121 states. [2020-09-25 07:48:10,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1380 transitions. [2020-09-25 07:48:10,758 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1380 transitions. Word has length 232 [2020-09-25 07:48:10,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:10,759 INFO L479 AbstractCegarLoop]: Abstraction has 1121 states and 1380 transitions. [2020-09-25 07:48:10,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1380 transitions. [2020-09-25 07:48:10,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 07:48:10,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:10,764 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:10,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:48:10,765 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:10,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:10,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1507788610, now seen corresponding path program 1 times [2020-09-25 07:48:10,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:10,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1189924562] [2020-09-25 07:48:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:10,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:10,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:11,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:12,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:12,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 07:48:12,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 07:48:12,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1236 [2020-09-25 07:48:12,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:12,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:12,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:48:12,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-25 07:48:12,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 07:48:12,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:12,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:12,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:12,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:12,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:12,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:12,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:12,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:12,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:12,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:12,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:12,157 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 07:48:12,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1189924562] [2020-09-25 07:48:12,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:12,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:48:12,158 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672290962] [2020-09-25 07:48:12,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:48:12,159 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:12,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:48:12,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:48:12,160 INFO L87 Difference]: Start difference. First operand 1121 states and 1380 transitions. Second operand 3 states. [2020-09-25 07:48:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:12,435 INFO L93 Difference]: Finished difference Result 2403 states and 3107 transitions. [2020-09-25 07:48:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:48:12,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 257 [2020-09-25 07:48:12,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:12,444 INFO L225 Difference]: With dead ends: 2403 [2020-09-25 07:48:12,444 INFO L226 Difference]: Without dead ends: 1426 [2020-09-25 07:48:12,446 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 07:48:12,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2020-09-25 07:48:12,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1341. [2020-09-25 07:48:12,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-09-25 07:48:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1645 transitions. [2020-09-25 07:48:12,488 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1645 transitions. Word has length 257 [2020-09-25 07:48:12,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:12,488 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1645 transitions. [2020-09-25 07:48:12,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:48:12,489 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1645 transitions. [2020-09-25 07:48:12,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 07:48:12,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:12,495 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:12,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:48:12,496 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:12,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:12,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1870764962, now seen corresponding path program 1 times [2020-09-25 07:48:12,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:12,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062987145] [2020-09-25 07:48:12,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:12,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:12,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-25 07:48:13,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:13,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 658 [2020-09-25 07:48:13,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:48:13,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-25 07:48:13,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:13,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:13,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:13,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:13,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:13,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:13,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:13,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:13,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:13,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:13,550 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 07:48:13,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062987145] [2020-09-25 07:48:13,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:13,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:48:13,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74797044] [2020-09-25 07:48:13,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:48:13,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:13,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:48:13,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:48:13,554 INFO L87 Difference]: Start difference. First operand 1341 states and 1645 transitions. Second operand 6 states. [2020-09-25 07:48:13,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:13,923 INFO L93 Difference]: Finished difference Result 2669 states and 3333 transitions. [2020-09-25 07:48:13,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:48:13,924 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 257 [2020-09-25 07:48:13,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:13,933 INFO L225 Difference]: With dead ends: 2669 [2020-09-25 07:48:13,933 INFO L226 Difference]: Without dead ends: 1477 [2020-09-25 07:48:13,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:13,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2020-09-25 07:48:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1431. [2020-09-25 07:48:14,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1431 states. [2020-09-25 07:48:14,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1431 states to 1431 states and 1785 transitions. [2020-09-25 07:48:14,011 INFO L78 Accepts]: Start accepts. Automaton has 1431 states and 1785 transitions. Word has length 257 [2020-09-25 07:48:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:14,012 INFO L479 AbstractCegarLoop]: Abstraction has 1431 states and 1785 transitions. [2020-09-25 07:48:14,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:48:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1431 states and 1785 transitions. [2020-09-25 07:48:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-09-25 07:48:14,023 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:14,024 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:14,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 07:48:14,025 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:14,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:14,025 INFO L82 PathProgramCache]: Analyzing trace with hash -225222432, now seen corresponding path program 1 times [2020-09-25 07:48:14,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:14,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137797035] [2020-09-25 07:48:14,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:14,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:14,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:15,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:15,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-25 07:48:15,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1055 [2020-09-25 07:48:15,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:15,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:15,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:48:15,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 152 [2020-09-25 07:48:15,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:15,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:15,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:15,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:15,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:15,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:15,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:48:15,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:15,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:15,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:15,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 07:48:15,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137797035] [2020-09-25 07:48:15,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:15,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:48:15,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644202426] [2020-09-25 07:48:15,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:48:15,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:15,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:48:15,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:48:15,342 INFO L87 Difference]: Start difference. First operand 1431 states and 1785 transitions. Second operand 6 states. [2020-09-25 07:48:15,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:15,680 INFO L93 Difference]: Finished difference Result 2822 states and 3566 transitions. [2020-09-25 07:48:15,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:48:15,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 258 [2020-09-25 07:48:15,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:15,688 INFO L225 Difference]: With dead ends: 2822 [2020-09-25 07:48:15,689 INFO L226 Difference]: Without dead ends: 1512 [2020-09-25 07:48:15,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:15,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2020-09-25 07:48:15,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1437. [2020-09-25 07:48:15,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1437 states. [2020-09-25 07:48:15,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1793 transitions. [2020-09-25 07:48:15,761 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1793 transitions. Word has length 258 [2020-09-25 07:48:15,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:15,761 INFO L479 AbstractCegarLoop]: Abstraction has 1437 states and 1793 transitions. [2020-09-25 07:48:15,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:48:15,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1793 transitions. [2020-09-25 07:48:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2020-09-25 07:48:15,772 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:15,772 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:15,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 07:48:15,773 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:15,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:15,774 INFO L82 PathProgramCache]: Analyzing trace with hash 488549191, now seen corresponding path program 1 times [2020-09-25 07:48:15,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:15,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041611975] [2020-09-25 07:48:15,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:15,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-25 07:48:16,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:48:16,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 941 [2020-09-25 07:48:16,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:48:16,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:48:16,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 07:48:16,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:16,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:48:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:48:16,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:48:16,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:48:16,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:48:16,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:48:16,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:48:16,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:48:16,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:48:16,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:48:16,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:48:16,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:48:16,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:48:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-09-25 07:48:16,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041611975] [2020-09-25 07:48:16,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:48:16,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:48:16,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560276965] [2020-09-25 07:48:16,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:48:16,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:48:16,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:48:16,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:48:16,927 INFO L87 Difference]: Start difference. First operand 1437 states and 1793 transitions. Second operand 6 states. [2020-09-25 07:48:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:48:17,131 INFO L93 Difference]: Finished difference Result 2719 states and 3425 transitions. [2020-09-25 07:48:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 07:48:17,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 276 [2020-09-25 07:48:17,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:48:17,139 INFO L225 Difference]: With dead ends: 2719 [2020-09-25 07:48:17,140 INFO L226 Difference]: Without dead ends: 1434 [2020-09-25 07:48:17,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:48:17,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2020-09-25 07:48:17,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1434. [2020-09-25 07:48:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1434 states. [2020-09-25 07:48:17,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1788 transitions. [2020-09-25 07:48:17,189 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1788 transitions. Word has length 276 [2020-09-25 07:48:17,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:48:17,190 INFO L479 AbstractCegarLoop]: Abstraction has 1434 states and 1788 transitions. [2020-09-25 07:48:17,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:48:17,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1788 transitions. [2020-09-25 07:48:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-25 07:48:17,198 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:48:17,199 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:48:17,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 07:48:17,199 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:48:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:48:17,200 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-09-25 07:48:17,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:48:17,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831420239] [2020-09-25 07:48:17,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:48:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 07:48:17,251 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 07:48:17,252 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 07:48:17,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 07:48:17,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:48:17 BoogieIcfgContainer [2020-09-25 07:48:17,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:48:17,323 INFO L168 Benchmark]: Toolchain (without parser) took 17720.20 ms. Allocated memory was 147.3 MB in the beginning and 465.0 MB in the end (delta: 317.7 MB). Free memory was 102.9 MB in the beginning and 265.3 MB in the end (delta: -162.5 MB). Peak memory consumption was 155.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:17,324 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 07:48:17,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.74 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.2 MB in the beginning and 179.6 MB in the end (delta: -77.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:17,326 INFO L168 Benchmark]: Boogie Preprocessor took 66.51 ms. Allocated memory is still 203.9 MB. Free memory was 179.6 MB in the beginning and 177.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:17,327 INFO L168 Benchmark]: RCFGBuilder took 955.76 ms. Allocated memory is still 203.9 MB. Free memory was 177.0 MB in the beginning and 111.7 MB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:17,330 INFO L168 Benchmark]: TraceAbstraction took 16152.01 ms. Allocated memory was 203.9 MB in the beginning and 465.0 MB in the end (delta: 261.1 MB). Free memory was 111.1 MB in the beginning and 265.3 MB in the end (delta: -154.3 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. [2020-09-25 07:48:17,343 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 147.3 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 536.74 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.2 MB in the beginning and 179.6 MB in the end (delta: -77.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.51 ms. Allocated memory is still 203.9 MB. Free memory was 179.6 MB in the beginning and 177.0 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 955.76 ms. Allocated memory is still 203.9 MB. Free memory was 177.0 MB in the beginning and 111.7 MB in the end (delta: 65.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16152.01 ms. Allocated memory was 203.9 MB in the beginning and 465.0 MB in the end (delta: 261.1 MB). Free memory was 111.1 MB in the beginning and 265.3 MB in the end (delta: -154.3 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags = __VERIFIER_nondet_int() ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 = __VERIFIER_nondet_int() ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 + 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version + 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 391 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.0s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3206 SDtfs, 3534 SDslu, 3743 SDs, 0 SdLazy, 632 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1437occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 206 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 2122 NumberOfCodeBlocks, 2122 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1834 ConstructedInterpolants, 0 QuantifiedInterpolants, 751180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 578/578 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...