/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=0.6 --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_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:38:43,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:38:43,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:38:43,764 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:38:43,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:38:43,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:38:43,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:38:43,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:38:43,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:38:43,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:38:43,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:38:43,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:38:43,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:38:43,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:38:43,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:38:43,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:38:43,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:38:43,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:38:43,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:38:43,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:38:43,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:38:43,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:38:43,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:38:43,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:38:43,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:38:43,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:38:43,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:38:43,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:38:43,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:38:43,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:38:43,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:38:43,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:38:43,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:38:43,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:38:43,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:38:43,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:38:43,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:38:43,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:38:43,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:38:43,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:38:43,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:38:43,839 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 06:38:43,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:38:43,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:38:43,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:38:43,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:38:43,887 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:38:43,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:38:43,888 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:38:43,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:38:43,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:38:43,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:38:43,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:38:43,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:38:43,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:38:43,891 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:38:43,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:38:43,892 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:38:43,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:38:43,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:38:43,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:38:43,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:38:43,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:38:43,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:38:43,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:38:43,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:38:43,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:38:43,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:38:43,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:38:43,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:38:43,895 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:38:43,895 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:38:44,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:38:44,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:38:44,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:38:44,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:38:44,349 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:38:44,351 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-25 06:38:44,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ac9f2649/2138193e7a754b0897a669ad7e7d468e/FLAGe44e4e08b [2020-09-25 06:38:45,077 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:38:45,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-25 06:38:45,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ac9f2649/2138193e7a754b0897a669ad7e7d468e/FLAGe44e4e08b [2020-09-25 06:38:45,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ac9f2649/2138193e7a754b0897a669ad7e7d468e [2020-09-25 06:38:45,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:38:45,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:38:45,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:38:45,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:38:45,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:38:45,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac86a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45, skipping insertion in model container [2020-09-25 06:38:45,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:38:45,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:38:45,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:38:45,732 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:38:45,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:38:45,921 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:38:45,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45 WrapperNode [2020-09-25 06:38:45,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:38:45,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:38:45,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:38:45,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:38:45,938 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (1/1) ... [2020-09-25 06:38:45,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:38:45,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:38:45,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:38:45,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:38:45,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (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 06:38:46,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:38:46,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:38:46,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 06:38:46,061 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:38:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:38:46,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 06:38:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:38:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 06:38:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 06:38:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:38:46,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:38:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:38:46,255 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 06:38:46,857 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 06:38:46,858 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 06:38:46,891 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:38:46,891 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 06:38:46,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:38:46 BoogieIcfgContainer [2020-09-25 06:38:46,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:38:46,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:38:46,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:38:46,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:38:46,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:38:45" (1/3) ... [2020-09-25 06:38:46,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aef691e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:38:46, skipping insertion in model container [2020-09-25 06:38:46,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:38:45" (2/3) ... [2020-09-25 06:38:46,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aef691e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:38:46, skipping insertion in model container [2020-09-25 06:38:46,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:38:46" (3/3) ... [2020-09-25 06:38:46,910 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-09-25 06:38:46,921 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:38:46,933 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:38:46,955 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:38:46,990 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:38:46,990 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:38:46,990 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:38:46,991 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:38:46,991 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:38:46,991 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:38:46,991 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:38:46,991 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:38:47,021 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2020-09-25 06:38:47,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:38:47,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:47,041 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] [2020-09-25 06:38:47,042 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:47,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:47,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1836119895, now seen corresponding path program 1 times [2020-09-25 06:38:47,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:47,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187224872] [2020-09-25 06:38:47,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:47,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:47,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:47,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:47,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:48,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:48,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 06:38:48,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:38:48,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 974 [2020-09-25 06:38:48,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:48,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-09-25 06:38:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 06:38:48,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:38:48,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:48,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:48,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:48,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:48,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:48,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:38:48,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:48,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:48,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:48,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:48,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:48,421 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 06:38:48,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187224872] [2020-09-25 06:38:48,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:48,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:38:48,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727285129] [2020-09-25 06:38:48,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:38:48,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:48,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:38:48,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:38:48,454 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 3 states. [2020-09-25 06:38:48,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:48,625 INFO L93 Difference]: Finished difference Result 849 states and 1106 transitions. [2020-09-25 06:38:48,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:38:48,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-25 06:38:48,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:48,660 INFO L225 Difference]: With dead ends: 849 [2020-09-25 06:38:48,660 INFO L226 Difference]: Without dead ends: 533 [2020-09-25 06:38:48,668 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 06:38:48,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2020-09-25 06:38:48,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2020-09-25 06:38:48,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-09-25 06:38:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 639 transitions. [2020-09-25 06:38:48,758 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 639 transitions. Word has length 160 [2020-09-25 06:38:48,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:48,759 INFO L479 AbstractCegarLoop]: Abstraction has 533 states and 639 transitions. [2020-09-25 06:38:48,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:38:48,760 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 639 transitions. [2020-09-25 06:38:48,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 06:38:48,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:48,768 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] [2020-09-25 06:38:48,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:38:48,769 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:48,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:48,769 INFO L82 PathProgramCache]: Analyzing trace with hash 2087119921, now seen corresponding path program 1 times [2020-09-25 06:38:48,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:48,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [134195462] [2020-09-25 06:38:48,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:48,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:48,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:49,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:49,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:49,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:50,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:50,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 06:38:50,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:38:50,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1411 [2020-09-25 06:38:50,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:50,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:50,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 06:38:50,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 06:38:50,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:50,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:50,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:50,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:50,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:50,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:50,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:38:50,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:50,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:50,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:50,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:38:50,331 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 06:38:50,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [134195462] [2020-09-25 06:38:50,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:50,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:38:50,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425262261] [2020-09-25 06:38:50,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:38:50,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:50,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:38:50,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:38:50,348 INFO L87 Difference]: Start difference. First operand 533 states and 639 transitions. Second operand 3 states. [2020-09-25 06:38:50,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:50,468 INFO L93 Difference]: Finished difference Result 924 states and 1137 transitions. [2020-09-25 06:38:50,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:38:50,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 06:38:50,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:50,479 INFO L225 Difference]: With dead ends: 924 [2020-09-25 06:38:50,480 INFO L226 Difference]: Without dead ends: 725 [2020-09-25 06:38:50,490 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 06:38:50,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2020-09-25 06:38:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 725. [2020-09-25 06:38:50,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-09-25 06:38:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 881 transitions. [2020-09-25 06:38:50,549 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 881 transitions. Word has length 180 [2020-09-25 06:38:50,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:50,553 INFO L479 AbstractCegarLoop]: Abstraction has 725 states and 881 transitions. [2020-09-25 06:38:50,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:38:50,553 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 881 transitions. [2020-09-25 06:38:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 06:38:50,558 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:50,559 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] [2020-09-25 06:38:50,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:38:50,559 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:50,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:50,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1945874443, now seen corresponding path program 1 times [2020-09-25 06:38:50,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:50,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1713521599] [2020-09-25 06:38:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:50,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:50,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:50,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:51,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:51,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:51,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 06:38:51,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:38:51,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1173 [2020-09-25 06:38:51,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:51,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-25 06:38:51,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 06:38:51,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:51,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:51,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:51,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:51,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:51,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:51,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:38:51,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:51,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:51,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:51,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:51,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:51,907 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 06:38:51,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1713521599] [2020-09-25 06:38:51,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:51,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:38:51,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998279342] [2020-09-25 06:38:51,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:38:51,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:51,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:38:51,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:38:51,910 INFO L87 Difference]: Start difference. First operand 725 states and 881 transitions. Second operand 3 states. [2020-09-25 06:38:51,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:51,986 INFO L93 Difference]: Finished difference Result 1308 states and 1621 transitions. [2020-09-25 06:38:51,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:38:51,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 201 [2020-09-25 06:38:51,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:51,993 INFO L225 Difference]: With dead ends: 1308 [2020-09-25 06:38:51,993 INFO L226 Difference]: Without dead ends: 917 [2020-09-25 06:38:51,994 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 06:38:51,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2020-09-25 06:38:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2020-09-25 06:38:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-09-25 06:38:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1124 transitions. [2020-09-25 06:38:52,020 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1124 transitions. Word has length 201 [2020-09-25 06:38:52,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:52,021 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1124 transitions. [2020-09-25 06:38:52,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:38:52,021 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1124 transitions. [2020-09-25 06:38:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 06:38:52,026 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:52,026 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] [2020-09-25 06:38:52,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:38:52,026 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:52,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:52,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1938276821, now seen corresponding path program 1 times [2020-09-25 06:38:52,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:52,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493443934] [2020-09-25 06:38:52,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:52,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:52,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:52,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:52,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:52,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:54,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:54,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 06:38:54,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:38:54,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2457 [2020-09-25 06:38:54,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:54,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:54,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:54,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 206 [2020-09-25 06:38:54,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 06:38:54,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:38:54,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:54,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:54,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:54,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:54,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:54,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:38:54,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:54,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:54,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:54,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:54,633 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 06:38:54,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493443934] [2020-09-25 06:38:54,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:54,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:38:54,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461670764] [2020-09-25 06:38:54,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:38:54,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:54,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:38:54,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:38:54,636 INFO L87 Difference]: Start difference. First operand 917 states and 1124 transitions. Second operand 3 states. [2020-09-25 06:38:54,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:54,710 INFO L93 Difference]: Finished difference Result 1692 states and 2107 transitions. [2020-09-25 06:38:54,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:38:54,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 06:38:54,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:54,717 INFO L225 Difference]: With dead ends: 1692 [2020-09-25 06:38:54,717 INFO L226 Difference]: Without dead ends: 1109 [2020-09-25 06:38:54,719 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 06:38:54,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1109 states. [2020-09-25 06:38:54,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1109 to 1109. [2020-09-25 06:38:54,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2020-09-25 06:38:54,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1368 transitions. [2020-09-25 06:38:54,748 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1368 transitions. Word has length 224 [2020-09-25 06:38:54,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:54,749 INFO L479 AbstractCegarLoop]: Abstraction has 1109 states and 1368 transitions. [2020-09-25 06:38:54,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:38:54,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1368 transitions. [2020-09-25 06:38:54,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 06:38:54,754 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:54,754 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] [2020-09-25 06:38:54,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:38:54,755 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:54,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:54,755 INFO L82 PathProgramCache]: Analyzing trace with hash 54315530, now seen corresponding path program 1 times [2020-09-25 06:38:54,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:54,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179707076] [2020-09-25 06:38:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:54,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:54,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:54,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:55,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 06:38:55,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:38:55,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1113 [2020-09-25 06:38:55,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:55,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:38:55,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-09-25 06:38:55,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 06:38:55,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:55,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:55,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:55,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:55,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:55,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:55,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:38:55,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:55,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:55,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:55,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:55,999 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 06:38:56,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179707076] [2020-09-25 06:38:56,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:56,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:38:56,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848255800] [2020-09-25 06:38:56,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:38:56,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:56,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:38:56,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:38:56,004 INFO L87 Difference]: Start difference. First operand 1109 states and 1368 transitions. Second operand 3 states. [2020-09-25 06:38:56,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:56,298 INFO L93 Difference]: Finished difference Result 2386 states and 3090 transitions. [2020-09-25 06:38:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:38:56,299 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-09-25 06:38:56,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:56,310 INFO L225 Difference]: With dead ends: 2386 [2020-09-25 06:38:56,311 INFO L226 Difference]: Without dead ends: 1414 [2020-09-25 06:38:56,314 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 06:38:56,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1414 states. [2020-09-25 06:38:56,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1414 to 1329. [2020-09-25 06:38:56,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1329 states. [2020-09-25 06:38:56,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1633 transitions. [2020-09-25 06:38:56,358 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1633 transitions. Word has length 249 [2020-09-25 06:38:56,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:56,359 INFO L479 AbstractCegarLoop]: Abstraction has 1329 states and 1633 transitions. [2020-09-25 06:38:56,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:38:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1633 transitions. [2020-09-25 06:38:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-25 06:38:56,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:56,365 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] [2020-09-25 06:38:56,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:38:56,366 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:56,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1481414038, now seen corresponding path program 1 times [2020-09-25 06:38:56,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:56,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [509871603] [2020-09-25 06:38:56,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:56,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:56,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:56,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 06:38:56,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:38:56,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 462 [2020-09-25 06:38:56,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:56,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:38:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:38:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-25 06:38:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:56,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:56,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:56,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:56,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:56,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:56,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:38:56,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:56,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:56,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:57,130 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 06:38:57,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [509871603] [2020-09-25 06:38:57,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:57,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:38:57,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102215227] [2020-09-25 06:38:57,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:38:57,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:57,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:38:57,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:38:57,134 INFO L87 Difference]: Start difference. First operand 1329 states and 1633 transitions. Second operand 5 states. [2020-09-25 06:38:57,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:57,523 INFO L93 Difference]: Finished difference Result 2625 states and 3270 transitions. [2020-09-25 06:38:57,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:38:57,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 249 [2020-09-25 06:38:57,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:57,536 INFO L225 Difference]: With dead ends: 2625 [2020-09-25 06:38:57,536 INFO L226 Difference]: Without dead ends: 1410 [2020-09-25 06:38:57,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:38:57,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2020-09-25 06:38:57,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1335. [2020-09-25 06:38:57,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2020-09-25 06:38:57,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1641 transitions. [2020-09-25 06:38:57,601 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1641 transitions. Word has length 249 [2020-09-25 06:38:57,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:57,602 INFO L479 AbstractCegarLoop]: Abstraction has 1335 states and 1641 transitions. [2020-09-25 06:38:57,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:38:57,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1641 transitions. [2020-09-25 06:38:57,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-25 06:38:57,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:57,614 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] [2020-09-25 06:38:57,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 06:38:57,615 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:57,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:57,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1844265594, now seen corresponding path program 1 times [2020-09-25 06:38:57,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:57,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [279665541] [2020-09-25 06:38:57,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:57,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:57,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:58,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:58,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-25 06:38:58,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:38:58,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-09-25 06:38:58,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:58,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:38:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 06:38:58,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 06:38:58,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:58,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:38:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:38:58,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:38:58,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:38:58,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:38:58,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:38:58,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:38:58,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:38:58,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:38:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:38:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:38:58,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:38:58,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:38:58,552 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 06:38:58,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [279665541] [2020-09-25 06:38:58,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:38:58,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:38:58,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384359300] [2020-09-25 06:38:58,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:38:58,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:38:58,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:38:58,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:38:58,556 INFO L87 Difference]: Start difference. First operand 1335 states and 1641 transitions. Second operand 5 states. [2020-09-25 06:38:58,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:38:58,764 INFO L93 Difference]: Finished difference Result 2522 states and 3128 transitions. [2020-09-25 06:38:58,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:38:58,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-09-25 06:38:58,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:38:58,773 INFO L225 Difference]: With dead ends: 2522 [2020-09-25 06:38:58,774 INFO L226 Difference]: Without dead ends: 1332 [2020-09-25 06:38:58,780 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:38:58,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2020-09-25 06:38:58,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 1332. [2020-09-25 06:38:58,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1332 states. [2020-09-25 06:38:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1636 transitions. [2020-09-25 06:38:58,839 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1636 transitions. Word has length 268 [2020-09-25 06:38:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:38:58,840 INFO L479 AbstractCegarLoop]: Abstraction has 1332 states and 1636 transitions. [2020-09-25 06:38:58,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:38:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1636 transitions. [2020-09-25 06:38:58,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-25 06:38:58,847 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:38:58,847 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] [2020-09-25 06:38:58,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 06:38:58,847 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:38:58,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:38:58,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1703791530, now seen corresponding path program 1 times [2020-09-25 06:38:58,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:38:58,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711453982] [2020-09-25 06:38:58,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:38:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:38:58,936 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:38:58,936 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:38:58,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 06:38:59,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:38:59 BoogieIcfgContainer [2020-09-25 06:38:59,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:38:59,022 INFO L168 Benchmark]: Toolchain (without parser) took 13672.23 ms. Allocated memory was 141.0 MB in the beginning and 413.7 MB in the end (delta: 272.6 MB). Free memory was 102.7 MB in the beginning and 240.0 MB in the end (delta: -137.3 MB). Peak memory consumption was 135.3 MB. Max. memory is 7.1 GB. [2020-09-25 06:38:59,027 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-25 06:38:59,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.61 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 179.7 MB in the end (delta: -77.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:38:59,030 INFO L168 Benchmark]: Boogie Preprocessor took 61.52 ms. Allocated memory is still 204.5 MB. Free memory was 179.7 MB in the beginning and 177.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:38:59,030 INFO L168 Benchmark]: RCFGBuilder took 915.00 ms. Allocated memory is still 204.5 MB. Free memory was 177.5 MB in the beginning and 113.6 MB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:38:59,034 INFO L168 Benchmark]: TraceAbstraction took 12116.21 ms. Allocated memory was 204.5 MB in the beginning and 413.7 MB in the end (delta: 209.2 MB). Free memory was 112.7 MB in the beginning and 240.0 MB in the end (delta: -127.3 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-09-25 06:38:59,047 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 567.61 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.2 MB in the beginning and 179.7 MB in the end (delta: -77.5 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 61.52 ms. Allocated memory is still 204.5 MB. Free memory was 179.7 MB in the beginning and 177.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 915.00 ms. Allocated memory is still 204.5 MB. Free memory was 177.5 MB in the beginning and 113.6 MB in the end (delta: 63.9 MB). Peak memory consumption was 63.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12116.21 ms. Allocated memory was 204.5 MB in the beginning and 413.7 MB in the end (delta: 209.2 MB). Free memory was 112.7 MB in the beginning and 240.0 MB in the end (delta: -127.3 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L548] int s ; [L552] s = 12292 [L553] CALL ssl3_connect(12292) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] 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 ; [L76] s__state = initial_state [L77] blastFlag = 0 [L78] tmp = __VERIFIER_nondet_int() [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] tmp___0 = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 - 12288) [L97] COND TRUE 1 [L99] state = s__state [L100] COND TRUE s__state == 12292 [L202] s__new_session = 1 [L203] s__state = 4096 [L204] s__ctx__stats__sess_connect_renegotiate ++ [L209] s__server = 0 [L210] COND TRUE cb != 0 [L214] __cil_tmp55 = s__version - 65280 [L215] COND FALSE !(__cil_tmp55 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L233] COND FALSE !(! tmp___4) [L237] COND FALSE !(! tmp___5) [L241] s__state = 4368 [L242] s__ctx__stats__sess_connect ++ [L243] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND TRUE s__state == 4368 [L247] s__shutdown = 0 [L248] ret = __VERIFIER_nondet_int() [L249] COND TRUE blastFlag == 0 [L250] blastFlag = 1 [L252] COND FALSE !(ret <= 0) [L255] s__state = 4384 [L256] s__init_num = 0 [L257] COND TRUE s__bbio != s__wbio [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND TRUE s__state == 4384 [L263] ret = __VERIFIER_nondet_int() [L264] COND TRUE blastFlag == 1 [L265] blastFlag = 2 [L267] COND FALSE !(ret <= 0) [L270] COND FALSE !(\read(s__hit)) [L273] s__state = 4400 [L275] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND TRUE s__state == 4400 [L279] COND FALSE !(s__s3__tmp__new_cipher__algorithms - 256) [L282] ret = __VERIFIER_nondet_int() [L283] COND TRUE blastFlag == 2 [L284] blastFlag = 3 [L286] COND FALSE !(ret <= 0) [L290] s__state = 4416 [L291] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND TRUE s__state == 4416 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 3 [L297] blastFlag = 4 [L299] COND FALSE !(ret <= 0) [L302] s__state = 4432 [L303] s__init_num = 0 [L304] COND FALSE !(! tmp___6) [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND FALSE !(s__state == 4416) [L136] COND FALSE !(s__state == 4417) [L139] COND TRUE s__state == 4432 [L311] ret = __VERIFIER_nondet_int() [L312] COND TRUE blastFlag == 4 [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 383 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2795 SDtfs, 2569 SDslu, 2399 SDs, 0 SdLazy, 435 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1335occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 160 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 1803 NumberOfCodeBlocks, 1803 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1524 ConstructedInterpolants, 0 QuantifiedInterpolants, 532204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 462/462 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...