/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 --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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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_3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 12:25:19,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 12:25:19,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 12:25:19,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 12:25:19,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 12:25:19,871 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 12:25:19,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 12:25:19,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 12:25:19,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 12:25:19,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 12:25:19,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 12:25:19,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 12:25:19,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 12:25:19,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 12:25:19,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 12:25:19,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 12:25:19,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 12:25:19,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 12:25:19,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 12:25:19,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 12:25:19,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 12:25:19,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 12:25:19,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 12:25:19,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 12:25:19,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 12:25:19,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 12:25:19,936 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 12:25:19,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 12:25:19,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 12:25:19,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 12:25:19,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 12:25:19,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 12:25:19,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 12:25:19,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 12:25:19,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 12:25:19,948 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 12:25:19,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 12:25:19,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 12:25:19,950 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 12:25:19,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 12:25:19,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 12:25:19,953 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 [2020-09-21 12:25:20,002 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 12:25:20,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 12:25:20,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 12:25:20,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 12:25:20,006 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 12:25:20,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 12:25:20,007 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 12:25:20,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 12:25:20,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 12:25:20,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 12:25:20,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 12:25:20,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 12:25:20,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 12:25:20,009 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 12:25:20,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 12:25:20,010 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 12:25:20,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 12:25:20,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 12:25:20,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 12:25:20,011 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 12:25:20,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 12:25:20,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 12:25:20,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 12:25:20,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 12:25:20,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 12:25:20,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 12:25:20,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 12:25:20,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 12:25:20,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 12:25:20,013 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.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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-21 12:25:20,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 12:25:20,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 12:25:20,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 12:25:20,488 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 12:25:20,488 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 12:25:20,490 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-21 12:25:20,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/990fdd10f/81cd9f326b39474f8cca35fe1c20d1b7/FLAGd7bcfc062 [2020-09-21 12:25:21,221 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 12:25:21,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-21 12:25:21,246 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/990fdd10f/81cd9f326b39474f8cca35fe1c20d1b7/FLAGd7bcfc062 [2020-09-21 12:25:21,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/990fdd10f/81cd9f326b39474f8cca35fe1c20d1b7 [2020-09-21 12:25:21,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 12:25:21,529 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 12:25:21,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 12:25:21,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 12:25:21,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 12:25:21,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:25:21" (1/1) ... [2020-09-21 12:25:21,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b5b388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:21, skipping insertion in model container [2020-09-21 12:25:21,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:25:21" (1/1) ... [2020-09-21 12:25:21,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 12:25:21,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 12:25:21,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:25:21,925 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 12:25:22,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 12:25:22,134 INFO L208 MainTranslator]: Completed translation [2020-09-21 12:25:22,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22 WrapperNode [2020-09-21 12:25:22,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 12:25:22,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 12:25:22,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 12:25:22,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 12:25:22,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (1/1) ... [2020-09-21 12:25:22,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (1/1) ... [2020-09-21 12:25:22,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (1/1) ... [2020-09-21 12:25:22,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (1/1) ... [2020-09-21 12:25:22,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (1/1) ... [2020-09-21 12:25:22,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (1/1) ... [2020-09-21 12:25:22,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (1/1) ... [2020-09-21 12:25:22,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 12:25:22,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 12:25:22,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 12:25:22,202 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 12:25:22,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (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 [2020-09-21 12:25:22,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 12:25:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 12:25:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-21 12:25:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 12:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 12:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-21 12:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 12:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-21 12:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-21 12:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-21 12:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 12:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 12:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 12:25:22,475 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-21 12:25:23,016 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-21 12:25:23,016 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-21 12:25:23,038 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 12:25:23,039 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 12:25:23,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:25:23 BoogieIcfgContainer [2020-09-21 12:25:23,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 12:25:23,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 12:25:23,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 12:25:23,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 12:25:23,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:25:21" (1/3) ... [2020-09-21 12:25:23,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650fdfdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:25:23, skipping insertion in model container [2020-09-21 12:25:23,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:25:22" (2/3) ... [2020-09-21 12:25:23,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650fdfdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:25:23, skipping insertion in model container [2020-09-21 12:25:23,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:25:23" (3/3) ... [2020-09-21 12:25:23,057 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-2.c [2020-09-21 12:25:23,070 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 12:25:23,082 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 12:25:23,108 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 12:25:23,150 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 12:25:23,151 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 12:25:23,151 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 12:25:23,151 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 12:25:23,151 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 12:25:23,152 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 12:25:23,152 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 12:25:23,152 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 12:25:23,185 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-09-21 12:25:23,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-21 12:25:23,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:23,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:23,201 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:23,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:23,211 INFO L82 PathProgramCache]: Analyzing trace with hash 173387410, now seen corresponding path program 1 times [2020-09-21 12:25:23,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:23,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256811043] [2020-09-21 12:25:23,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:23,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:23,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:24,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:24,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:24,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-21 12:25:24,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:25:24,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 876 [2020-09-21 12:25:24,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:24,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:24,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 12:25:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 12:25:24,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-21 12:25:24,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:24,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:24,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:24,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:24,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:24,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 12:25:24,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:24,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:24,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:25:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:25:24,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256811043] [2020-09-21 12:25:24,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:24,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:24,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488430748] [2020-09-21 12:25:24,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:24,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:24,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:24,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:24,458 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 3 states. [2020-09-21 12:25:24,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:24,574 INFO L93 Difference]: Finished difference Result 377 states and 634 transitions. [2020-09-21 12:25:24,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:24,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-09-21 12:25:24,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:24,595 INFO L225 Difference]: With dead ends: 377 [2020-09-21 12:25:24,595 INFO L226 Difference]: Without dead ends: 220 [2020-09-21 12:25:24,601 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 [2020-09-21 12:25:24,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-21 12:25:24,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-09-21 12:25:24,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-21 12:25:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 326 transitions. [2020-09-21 12:25:24,677 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 326 transitions. Word has length 29 [2020-09-21 12:25:24,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:24,677 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 326 transitions. [2020-09-21 12:25:24,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:24,678 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 326 transitions. [2020-09-21 12:25:24,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-21 12:25:24,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:24,681 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] [2020-09-21 12:25:24,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 12:25:24,682 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:24,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:24,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1098416379, now seen corresponding path program 1 times [2020-09-21 12:25:24,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:24,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [918898946] [2020-09-21 12:25:24,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:24,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:24,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:24,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:25,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:25,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:25,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:25,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-21 12:25:25,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:25:25,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-21 12:25:25,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:25,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:25,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-21 12:25:25,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 12:25:25,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:25,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:25,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:25,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:25,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:25,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:25,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 12:25:25,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:25,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:25,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:25,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 12:25:25,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [918898946] [2020-09-21 12:25:25,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:25,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:25,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510177912] [2020-09-21 12:25:25,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:25,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:25,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:25,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:25,768 INFO L87 Difference]: Start difference. First operand 220 states and 326 transitions. Second operand 3 states. [2020-09-21 12:25:25,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:25,992 INFO L93 Difference]: Finished difference Result 472 states and 710 transitions. [2020-09-21 12:25:25,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:25,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-09-21 12:25:25,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:25,997 INFO L225 Difference]: With dead ends: 472 [2020-09-21 12:25:25,997 INFO L226 Difference]: Without dead ends: 264 [2020-09-21 12:25:25,999 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 [2020-09-21 12:25:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-09-21 12:25:26,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 254. [2020-09-21 12:25:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-21 12:25:26,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 370 transitions. [2020-09-21 12:25:26,039 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 370 transitions. Word has length 43 [2020-09-21 12:25:26,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:26,039 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 370 transitions. [2020-09-21 12:25:26,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 370 transitions. [2020-09-21 12:25:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 12:25:26,046 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:26,046 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] [2020-09-21 12:25:26,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 12:25:26,047 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:26,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:26,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1571737336, now seen corresponding path program 1 times [2020-09-21 12:25:26,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:26,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413947294] [2020-09-21 12:25:26,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:26,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:26,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:26,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:26,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:26,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:26,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:26,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 12:25:26,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-21 12:25:26,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 672 [2020-09-21 12:25:26,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:26,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:26,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 12:25:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 12:25:26,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:26,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:26,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:26,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:26,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:26,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:26,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:25:26,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:26,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:26,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:25:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 12:25:26,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413947294] [2020-09-21 12:25:26,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:26,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:26,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646718938] [2020-09-21 12:25:26,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:26,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:26,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:26,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:26,808 INFO L87 Difference]: Start difference. First operand 254 states and 370 transitions. Second operand 3 states. [2020-09-21 12:25:27,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:27,118 INFO L93 Difference]: Finished difference Result 598 states and 902 transitions. [2020-09-21 12:25:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:27,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-09-21 12:25:27,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:27,123 INFO L225 Difference]: With dead ends: 598 [2020-09-21 12:25:27,123 INFO L226 Difference]: Without dead ends: 354 [2020-09-21 12:25:27,125 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 [2020-09-21 12:25:27,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-21 12:25:27,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 336. [2020-09-21 12:25:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-21 12:25:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 470 transitions. [2020-09-21 12:25:27,156 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 470 transitions. Word has length 60 [2020-09-21 12:25:27,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:27,157 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 470 transitions. [2020-09-21 12:25:27,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:27,157 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 470 transitions. [2020-09-21 12:25:27,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-21 12:25:27,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:27,170 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] [2020-09-21 12:25:27,170 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 12:25:27,171 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:27,171 INFO L82 PathProgramCache]: Analyzing trace with hash -233700998, now seen corresponding path program 1 times [2020-09-21 12:25:27,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:27,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971668710] [2020-09-21 12:25:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:27,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:27,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:27,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:27,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:27,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:28,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:28,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-09-21 12:25:28,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:25:28,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-09-21 12:25:28,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:28,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:28,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 12:25:28,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 12:25:28,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:28,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:28,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:28,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:28,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:28,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:28,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 12:25:28,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:28,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:28,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:28,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 12:25:28,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1971668710] [2020-09-21 12:25:28,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:28,252 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:28,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194392002] [2020-09-21 12:25:28,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:28,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:28,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:28,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:28,259 INFO L87 Difference]: Start difference. First operand 336 states and 470 transitions. Second operand 3 states. [2020-09-21 12:25:28,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:28,461 INFO L93 Difference]: Finished difference Result 708 states and 1005 transitions. [2020-09-21 12:25:28,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:28,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-09-21 12:25:28,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:28,465 INFO L225 Difference]: With dead ends: 708 [2020-09-21 12:25:28,465 INFO L226 Difference]: Without dead ends: 384 [2020-09-21 12:25:28,467 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 [2020-09-21 12:25:28,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2020-09-21 12:25:28,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 374. [2020-09-21 12:25:28,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-09-21 12:25:28,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 518 transitions. [2020-09-21 12:25:28,483 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 518 transitions. Word has length 60 [2020-09-21 12:25:28,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:28,484 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 518 transitions. [2020-09-21 12:25:28,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:28,484 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 518 transitions. [2020-09-21 12:25:28,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 12:25:28,491 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:28,491 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 12:25:28,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 12:25:28,491 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:28,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:28,492 INFO L82 PathProgramCache]: Analyzing trace with hash -343872958, now seen corresponding path program 1 times [2020-09-21 12:25:28,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:28,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714013169] [2020-09-21 12:25:28,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:28,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:28,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:28,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:28,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:29,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:29,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:29,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:29,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-09-21 12:25:29,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-21 12:25:29,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-21 12:25:29,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-09-21 12:25:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 12:25:29,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:29,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:29,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:29,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:29,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:29,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:25:29,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:29,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:29,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 12:25:29,595 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 12:25:29,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714013169] [2020-09-21 12:25:29,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:29,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:29,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378918195] [2020-09-21 12:25:29,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:29,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:29,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:29,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:29,598 INFO L87 Difference]: Start difference. First operand 374 states and 518 transitions. Second operand 3 states. [2020-09-21 12:25:29,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:29,820 INFO L93 Difference]: Finished difference Result 842 states and 1204 transitions. [2020-09-21 12:25:29,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:29,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2020-09-21 12:25:29,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:29,825 INFO L225 Difference]: With dead ends: 842 [2020-09-21 12:25:29,825 INFO L226 Difference]: Without dead ends: 478 [2020-09-21 12:25:29,826 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 [2020-09-21 12:25:29,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-21 12:25:29,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 452. [2020-09-21 12:25:29,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-09-21 12:25:29,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 652 transitions. [2020-09-21 12:25:29,843 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 652 transitions. Word has length 73 [2020-09-21 12:25:29,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:29,844 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 652 transitions. [2020-09-21 12:25:29,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:29,844 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 652 transitions. [2020-09-21 12:25:29,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 12:25:29,846 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:29,846 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] [2020-09-21 12:25:29,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 12:25:29,847 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:29,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:29,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1570407527, now seen corresponding path program 1 times [2020-09-21 12:25:29,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:29,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302731248] [2020-09-21 12:25:29,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:29,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:29,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:30,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:30,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:30,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:30,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:30,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 12:25:30,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-21 12:25:30,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 790 [2020-09-21 12:25:30,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-09-21 12:25:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-21 12:25:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:30,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:30,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:30,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:30,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:30,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:30,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 12:25:30,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:30,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:30,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:30,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-21 12:25:30,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302731248] [2020-09-21 12:25:30,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:30,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:30,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246802395] [2020-09-21 12:25:30,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:30,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:30,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:30,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:30,733 INFO L87 Difference]: Start difference. First operand 452 states and 652 transitions. Second operand 3 states. [2020-09-21 12:25:30,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:30,983 INFO L93 Difference]: Finished difference Result 1000 states and 1465 transitions. [2020-09-21 12:25:30,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:30,984 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2020-09-21 12:25:30,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:30,989 INFO L225 Difference]: With dead ends: 1000 [2020-09-21 12:25:30,989 INFO L226 Difference]: Without dead ends: 560 [2020-09-21 12:25:30,991 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 [2020-09-21 12:25:30,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-09-21 12:25:31,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 532. [2020-09-21 12:25:31,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-09-21 12:25:31,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 760 transitions. [2020-09-21 12:25:31,015 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 760 transitions. Word has length 77 [2020-09-21 12:25:31,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:31,016 INFO L479 AbstractCegarLoop]: Abstraction has 532 states and 760 transitions. [2020-09-21 12:25:31,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:31,016 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 760 transitions. [2020-09-21 12:25:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-09-21 12:25:31,020 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:31,020 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] [2020-09-21 12:25:31,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 12:25:31,020 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:31,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:31,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1356861727, now seen corresponding path program 1 times [2020-09-21 12:25:31,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:31,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164785059] [2020-09-21 12:25:31,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:31,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:31,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:31,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:31,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:32,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:32,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-21 12:25:32,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-21 12:25:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 999 [2020-09-21 12:25:32,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 12:25:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-21 12:25:32,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-21 12:25:32,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:32,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:32,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:32,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:32,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:32,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:32,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 12:25:32,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:32,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:32,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:32,090 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-21 12:25:32,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164785059] [2020-09-21 12:25:32,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:32,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 12:25:32,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798570115] [2020-09-21 12:25:32,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 12:25:32,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:32,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 12:25:32,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 12:25:32,093 INFO L87 Difference]: Start difference. First operand 532 states and 760 transitions. Second operand 3 states. [2020-09-21 12:25:32,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:32,144 INFO L93 Difference]: Finished difference Result 1052 states and 1509 transitions. [2020-09-21 12:25:32,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 12:25:32,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-09-21 12:25:32,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:32,150 INFO L225 Difference]: With dead ends: 1052 [2020-09-21 12:25:32,150 INFO L226 Difference]: Without dead ends: 791 [2020-09-21 12:25:32,151 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 [2020-09-21 12:25:32,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2020-09-21 12:25:32,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2020-09-21 12:25:32,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-21 12:25:32,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1131 transitions. [2020-09-21 12:25:32,194 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1131 transitions. Word has length 97 [2020-09-21 12:25:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:32,195 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 1131 transitions. [2020-09-21 12:25:32,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 12:25:32,195 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1131 transitions. [2020-09-21 12:25:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-09-21 12:25:32,204 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:32,204 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] [2020-09-21 12:25:32,204 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 12:25:32,205 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:32,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:32,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1774863991, now seen corresponding path program 1 times [2020-09-21 12:25:32,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:32,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453553581] [2020-09-21 12:25:32,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:32,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:32,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:32,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:32,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-21 12:25:32,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-21 12:25:32,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-09-21 12:25:32,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:32,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 12:25:32,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-21 12:25:32,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 12:25:32,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:32,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 12:25:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 12:25:32,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-21 12:25:32,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-21 12:25:32,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 12:25:32,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 12:25:32,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 12:25:32,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-21 12:25:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 12:25:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 12:25:32,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 12:25:32,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 12:25:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-21 12:25:32,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453553581] [2020-09-21 12:25:32,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 12:25:32,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 12:25:32,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579042167] [2020-09-21 12:25:32,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 12:25:32,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 12:25:32,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 12:25:32,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-21 12:25:32,602 INFO L87 Difference]: Start difference. First operand 791 states and 1131 transitions. Second operand 5 states. [2020-09-21 12:25:32,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 12:25:32,761 INFO L93 Difference]: Finished difference Result 1573 states and 2250 transitions. [2020-09-21 12:25:32,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 12:25:32,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-09-21 12:25:32,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 12:25:32,766 INFO L225 Difference]: With dead ends: 1573 [2020-09-21 12:25:32,766 INFO L226 Difference]: Without dead ends: 794 [2020-09-21 12:25:32,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 12:25:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2020-09-21 12:25:32,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2020-09-21 12:25:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 794 states. [2020-09-21 12:25:32,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1134 transitions. [2020-09-21 12:25:32,792 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1134 transitions. Word has length 99 [2020-09-21 12:25:32,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 12:25:32,792 INFO L479 AbstractCegarLoop]: Abstraction has 794 states and 1134 transitions. [2020-09-21 12:25:32,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 12:25:32,793 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1134 transitions. [2020-09-21 12:25:32,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-21 12:25:32,795 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 12:25:32,796 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] [2020-09-21 12:25:32,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 12:25:32,796 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 12:25:32,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 12:25:32,796 INFO L82 PathProgramCache]: Analyzing trace with hash -605456545, now seen corresponding path program 1 times [2020-09-21 12:25:32,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 12:25:32,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380684333] [2020-09-21 12:25:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 12:25:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 12:25:32,843 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 12:25:32,843 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 12:25:32,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 12:25:32,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:25:32 BoogieIcfgContainer [2020-09-21 12:25:32,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 12:25:32,912 INFO L168 Benchmark]: Toolchain (without parser) took 11381.06 ms. Allocated memory was 141.0 MB in the beginning and 345.0 MB in the end (delta: 203.9 MB). Free memory was 103.4 MB in the beginning and 185.4 MB in the end (delta: -82.0 MB). Peak memory consumption was 121.9 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:32,914 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 12:25:32,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.50 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 180.6 MB in the end (delta: -77.7 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:32,915 INFO L168 Benchmark]: Boogie Preprocessor took 65.85 ms. Allocated memory is still 205.0 MB. Free memory was 180.6 MB in the beginning and 178.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:32,916 INFO L168 Benchmark]: RCFGBuilder took 844.48 ms. Allocated memory is still 205.0 MB. Free memory was 178.0 MB in the beginning and 128.9 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:32,920 INFO L168 Benchmark]: TraceAbstraction took 9855.35 ms. Allocated memory was 205.0 MB in the beginning and 345.0 MB in the end (delta: 140.0 MB). Free memory was 128.2 MB in the beginning and 185.4 MB in the end (delta: -57.2 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-09-21 12:25:32,931 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 602.50 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 180.6 MB in the end (delta: -77.7 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 65.85 ms. Allocated memory is still 205.0 MB. Free memory was 180.6 MB in the beginning and 178.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 844.48 ms. Allocated memory is still 205.0 MB. Free memory was 178.0 MB in the beginning and 128.9 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9855.35 ms. Allocated memory was 205.0 MB in the beginning and 345.0 MB in the end (delta: 140.0 MB). Free memory was 128.2 MB in the beginning and 185.4 MB in the end (delta: -57.2 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 573]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L578] int s ; [L582] s = 12292 [L583] CALL ssl3_connect(s) [L12] int s__info_callback = __VERIFIER_nondet_int() ; [L13] int s__in_handshake = __VERIFIER_nondet_int() ; [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int() ; [L18] int s__type ; [L19] int s__init_num ; [L20] int s__bbio = __VERIFIER_nondet_int() ; [L21] int s__wbio = __VERIFIER_nondet_int() ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int s__rwstate ; [L24] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L25] int s__debug = __VERIFIER_nondet_int() ; [L26] int s__shutdown ; [L27] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L32] int s__s3__change_cipher_spec ; [L33] int s__s3__flags = __VERIFIER_nondet_int() ; [L34] int s__s3__delay_buf_pop_ret ; [L35] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int s__session__compress_meth ; [L44] int buf ; [L45] unsigned long tmp ; [L46] unsigned long l ; [L47] int num1 = __VERIFIER_nondet_int() ; [L48] int cb ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int tmp___0 ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 = __VERIFIER_nondet_int() ; [L61] int tmp___8 = __VERIFIER_nondet_int() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int blastFlag ; [L64] int __cil_tmp55 ; [L65] void *__cil_tmp56 ; [L66] unsigned long __cil_tmp57 ; [L67] unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ; [L68] void *__cil_tmp59 ; [L69] unsigned long __cil_tmp60 ; [L70] unsigned long __cil_tmp61 ; [L71] unsigned long __cil_tmp62 ; [L72] unsigned long __cil_tmp63 ; [L73] unsigned long __cil_tmp64 ; [L74] long __cil_tmp65 = __VERIFIER_nondet_long() ; [L75] long __cil_tmp66 ; [L76] long __cil_tmp67 ; [L77] long __cil_tmp68 ; [L78] long __cil_tmp69 ; [L79] long __cil_tmp70 = __VERIFIER_nondet_long() ; [L80] long __cil_tmp71 ; [L81] long __cil_tmp72 ; [L82] long __cil_tmp73 ; [L83] long __cil_tmp74 ; [L87] s__state = initial_state [L88] blastFlag = 0 [L89] tmp = __VERIFIER_nondet_int() [L90] cb = 0 [L91] ret = -1 [L92] skip = 0 [L93] tmp___0 = 0 [L94] COND TRUE s__info_callback != 0 [L95] cb = s__info_callback [L101] s__in_handshake ++ [L102] COND FALSE !(tmp___1 + 12288) [L108] COND TRUE 1 [L110] state = s__state [L111] COND TRUE s__state == 12292 [L213] s__new_session = 1 [L214] s__state = 4096 [L215] s__ctx__stats__sess_connect_renegotiate ++ [L220] s__server = 0 [L221] COND TRUE cb != 0 [L225] __cil_tmp55 = s__version + 65280 [L226] COND FALSE !(__cil_tmp55 != 768) [L231] s__type = 4096 [L233] __cil_tmp56 = (void *)0 [L234] __cil_tmp57 = (unsigned long )__cil_tmp56 [L235] __cil_tmp58 = (unsigned long )s__init_buf___0 [L236] COND FALSE !(__cil_tmp58 == __cil_tmp57) [L254] COND FALSE !(! tmp___4) [L258] COND FALSE !(! tmp___5) [L262] s__state = 4368 [L263] s__ctx__stats__sess_connect ++ [L264] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND TRUE s__state == 4368 [L268] s__shutdown = 0 [L269] ret = __VERIFIER_nondet_int() [L270] COND TRUE blastFlag == 0 [L271] blastFlag = 1 [L273] COND FALSE !(ret <= 0) [L276] s__state = 4384 [L277] s__init_num = 0 [L279] __cil_tmp62 = (unsigned long )s__wbio [L280] __cil_tmp63 = (unsigned long )s__bbio [L281] COND TRUE __cil_tmp63 != __cil_tmp62 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND TRUE s__state == 4384 [L288] ret = __VERIFIER_nondet_int() [L289] COND TRUE blastFlag == 1 [L290] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L299] COND FALSE !(\read(s__hit)) [L302] s__state = 4400 [L304] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND TRUE s__state == 4400 [L309] __cil_tmp64 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L310] COND FALSE !(__cil_tmp64 + 256UL) [L313] ret = __VERIFIER_nondet_int() [L314] COND TRUE blastFlag == 2 [L315] blastFlag = 3 [L317] COND FALSE !(ret <= 0) [L322] s__state = 4416 [L323] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND TRUE s__state == 4416 [L327] ret = __VERIFIER_nondet_int() [L328] COND TRUE blastFlag == 3 [L329] blastFlag = 4 [L331] COND FALSE !(ret <= 0) [L334] s__state = 4432 [L335] s__init_num = 0 [L336] COND FALSE !(! tmp___6) [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND FALSE !(s__state == 4416) [L147] COND FALSE !(s__state == 4417) [L150] COND TRUE s__state == 4432 [L343] ret = __VERIFIER_nondet_int() [L344] COND TRUE blastFlag == 4 [L573] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.7s, OverallIterations: 9, TraceHistogramMax: 6, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1469 SDtfs, 733 SDslu, 961 SDs, 0 SdLazy, 659 SolverSat, 151 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=794occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 92 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 650 NumberOfCodeBlocks, 650 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 530 ConstructedInterpolants, 0 QuantifiedInterpolants, 58034 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 391/391 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...