/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:19:16,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:19:16,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:19:16,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:19:16,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:19:16,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:19:16,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:19:16,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:19:16,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:19:16,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:19:16,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:19:16,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:19:16,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:19:16,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:19:16,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:19:16,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:19:16,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:19:16,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:19:16,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:19:16,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:19:16,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:19:16,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:19:16,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:19:16,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:19:16,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:19:16,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:19:16,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:19:16,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:19:16,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:19:16,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:19:16,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:19:16,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:19:16,132 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:19:16,133 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:19:16,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:19:16,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:19:16,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:19:16,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:19:16,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:19:16,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:19:16,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:19:16,139 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 11:19:16,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:19:16,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:19:16,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:19:16,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:19:16,184 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:19:16,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:19:16,185 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:19:16,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:19:16,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:19:16,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:19:16,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:19:16,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:19:16,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:19:16,186 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:19:16,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:19:16,187 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:19:16,187 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:19:16,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:19:16,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:19:16,188 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:19:16,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:19:16,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:19:16,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:19:16,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:19:16,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:19:16,189 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:19:16,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:19:16,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:19:16,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:19:16,190 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:19:16,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:19:16,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:19:16,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:19:16,702 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:19:16,703 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:19:16,704 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-21 11:19:16,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fda9bb897/8a807dc8064e42199e7616c581ceac59/FLAG90d0e0230 [2020-09-21 11:19:17,448 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:19:17,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-21 11:19:17,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fda9bb897/8a807dc8064e42199e7616c581ceac59/FLAG90d0e0230 [2020-09-21 11:19:17,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fda9bb897/8a807dc8064e42199e7616c581ceac59 [2020-09-21 11:19:17,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:19:17,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:19:17,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:19:17,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:19:17,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:19:17,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:19:17" (1/1) ... [2020-09-21 11:19:17,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cca7623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:17, skipping insertion in model container [2020-09-21 11:19:17,752 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:19:17" (1/1) ... [2020-09-21 11:19:17,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:19:17,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:19:18,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:19:18,127 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:19:18,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:19:18,334 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:19:18,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18 WrapperNode [2020-09-21 11:19:18,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:19:18,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:19:18,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:19:18,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:19:18,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (1/1) ... [2020-09-21 11:19:18,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (1/1) ... [2020-09-21 11:19:18,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (1/1) ... [2020-09-21 11:19:18,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (1/1) ... [2020-09-21 11:19:18,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (1/1) ... [2020-09-21 11:19:18,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (1/1) ... [2020-09-21 11:19:18,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (1/1) ... [2020-09-21 11:19:18,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:19:18,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:19:18,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:19:18,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:19:18,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (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 11:19:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:19:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:19:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-21 11:19:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:19:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:19:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:19:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-21 11:19:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-21 11:19:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:19:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:19:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:19:18,648 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-21 11:19:19,295 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-21 11:19:19,296 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-21 11:19:19,319 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:19:19,320 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:19:19,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:19:19 BoogieIcfgContainer [2020-09-21 11:19:19,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:19:19,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:19:19,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:19:19,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:19:19,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:19:17" (1/3) ... [2020-09-21 11:19:19,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1def5f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:19:19, skipping insertion in model container [2020-09-21 11:19:19,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:19:18" (2/3) ... [2020-09-21 11:19:19,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1def5f90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:19:19, skipping insertion in model container [2020-09-21 11:19:19,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:19:19" (3/3) ... [2020-09-21 11:19:19,338 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-21 11:19:19,350 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:19:19,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:19:19,385 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:19:19,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:19:19,417 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:19:19,417 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:19:19,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:19:19,417 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:19:19,417 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:19:19,418 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:19:19,418 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:19:19,444 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2020-09-21 11:19:19,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-21 11:19:19,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:19,456 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] [2020-09-21 11:19:19,456 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:19,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:19,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1233902378, now seen corresponding path program 1 times [2020-09-21 11:19:19,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:19,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [580665206] [2020-09-21 11:19:19,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:19,687 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:19,687 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:19,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:19,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:19,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-09-21 11:19:19,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:19,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:19:19,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:19,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:19:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-21 11:19:19,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:19:19,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:19,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:19,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:19,788 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:19,788 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:19,788 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:19,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:19,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:19,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:19:19,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:19,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:19,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:19,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:19,801 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 11:19:19,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [580665206] [2020-09-21 11:19:19,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:19:19,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:19:19,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386500623] [2020-09-21 11:19:19,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:19:19,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:19,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:19:19,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:19:19,831 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 3 states. [2020-09-21 11:19:20,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:20,142 INFO L93 Difference]: Finished difference Result 258 states and 434 transitions. [2020-09-21 11:19:20,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:19:20,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-09-21 11:19:20,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:20,161 INFO L225 Difference]: With dead ends: 258 [2020-09-21 11:19:20,161 INFO L226 Difference]: Without dead ends: 118 [2020-09-21 11:19:20,167 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 11:19:20,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-09-21 11:19:20,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2020-09-21 11:19:20,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-09-21 11:19:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 176 transitions. [2020-09-21 11:19:20,223 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 176 transitions. Word has length 30 [2020-09-21 11:19:20,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:20,223 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 176 transitions. [2020-09-21 11:19:20,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:19:20,224 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 176 transitions. [2020-09-21 11:19:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-21 11:19:20,226 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:20,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:20,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:19:20,227 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:20,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:20,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1082493398, now seen corresponding path program 1 times [2020-09-21 11:19:20,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:20,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100386923] [2020-09-21 11:19:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:20,280 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:20,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:20,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:20,281 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:20,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-21 11:19:20,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:20,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:19:20,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:19:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-21 11:19:20,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:19:20,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:20,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:20,356 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:20,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:20,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:20,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:20,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:20,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:20,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:19:20,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:20,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:20,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:20,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:20,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:19:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:19:20,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100386923] [2020-09-21 11:19:20,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:19:20,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:19:20,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554738802] [2020-09-21 11:19:20,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:19:20,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:20,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:19:20,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:19:20,377 INFO L87 Difference]: Start difference. First operand 118 states and 176 transitions. Second operand 3 states. [2020-09-21 11:19:20,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:20,568 INFO L93 Difference]: Finished difference Result 238 states and 361 transitions. [2020-09-21 11:19:20,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:19:20,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-09-21 11:19:20,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:20,571 INFO L225 Difference]: With dead ends: 238 [2020-09-21 11:19:20,571 INFO L226 Difference]: Without dead ends: 136 [2020-09-21 11:19:20,573 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 11:19:20,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-21 11:19:20,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 133. [2020-09-21 11:19:20,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-21 11:19:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 196 transitions. [2020-09-21 11:19:20,587 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 196 transitions. Word has length 42 [2020-09-21 11:19:20,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:20,587 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 196 transitions. [2020-09-21 11:19:20,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:19:20,588 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 196 transitions. [2020-09-21 11:19:20,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-21 11:19:20,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:20,590 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:19:20,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:19:20,591 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:20,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:20,591 INFO L82 PathProgramCache]: Analyzing trace with hash -636452013, now seen corresponding path program 1 times [2020-09-21 11:19:20,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:20,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907663245] [2020-09-21 11:19:20,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:20,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:20,655 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:20,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:20,658 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:20,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-21 11:19:20,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:20,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:19:20,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:20,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:19:20,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:19:20,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:19:20,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:20,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:19:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:19:20,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:19:20,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:19:20,751 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:19:20,751 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:19:20,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:19:20,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:19:20,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:19:20,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:19:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:19:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:19:20,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:19:20,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:19:20,757 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:19:20,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907663245] [2020-09-21 11:19:20,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:19:20,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:19:20,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055007892] [2020-09-21 11:19:20,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:19:20,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:19:20,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:19:20,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:19:20,760 INFO L87 Difference]: Start difference. First operand 133 states and 196 transitions. Second operand 3 states. [2020-09-21 11:19:20,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:19:20,916 INFO L93 Difference]: Finished difference Result 271 states and 407 transitions. [2020-09-21 11:19:20,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:19:20,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-09-21 11:19:20,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:19:20,919 INFO L225 Difference]: With dead ends: 271 [2020-09-21 11:19:20,919 INFO L226 Difference]: Without dead ends: 154 [2020-09-21 11:19:20,920 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 11:19:20,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-21 11:19:20,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150. [2020-09-21 11:19:20,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-21 11:19:20,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 218 transitions. [2020-09-21 11:19:20,933 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 218 transitions. Word has length 56 [2020-09-21 11:19:20,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:19:20,933 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 218 transitions. [2020-09-21 11:19:20,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:19:20,933 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 218 transitions. [2020-09-21 11:19:20,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 11:19:20,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:19:20,936 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 11:19:20,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:19:20,937 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:19:20,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:19:20,937 INFO L82 PathProgramCache]: Analyzing trace with hash 327884321, now seen corresponding path program 1 times [2020-09-21 11:19:20,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:19:20,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414784049] [2020-09-21 11:19:20,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:19:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:19:21,063 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:19:21,063 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:19:21,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:19:21,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:19:21 BoogieIcfgContainer [2020-09-21 11:19:21,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:19:21,125 INFO L168 Benchmark]: Toolchain (without parser) took 3389.58 ms. Allocated memory was 148.4 MB in the beginning and 234.9 MB in the end (delta: 86.5 MB). Free memory was 102.8 MB in the beginning and 106.2 MB in the end (delta: -3.5 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:21,127 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-21 11:19:21,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.70 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 102.3 MB in the beginning and 180.2 MB in the end (delta: -77.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:21,130 INFO L168 Benchmark]: Boogie Preprocessor took 59.34 ms. Allocated memory is still 205.0 MB. Free memory was 180.2 MB in the beginning and 178.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:21,131 INFO L168 Benchmark]: RCFGBuilder took 931.21 ms. Allocated memory is still 205.0 MB. Free memory was 178.3 MB in the beginning and 132.9 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:21,139 INFO L168 Benchmark]: TraceAbstraction took 1791.94 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 132.0 MB in the beginning and 106.2 MB in the end (delta: 25.7 MB). Peak memory consumption was 55.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:19:21,150 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 148.4 MB. Free memory was 121.6 MB in the beginning and 121.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 596.70 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 102.3 MB in the beginning and 180.2 MB in the end (delta: -77.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.34 ms. Allocated memory is still 205.0 MB. Free memory was 180.2 MB in the beginning and 178.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 931.21 ms. Allocated memory is still 205.0 MB. Free memory was 178.3 MB in the beginning and 132.9 MB in the end (delta: 45.4 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1791.94 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 132.0 MB in the beginning and 106.2 MB in the end (delta: 25.7 MB). Peak memory consumption was 55.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 614]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 301. Possible FailurePath: [L623] int __retres1 ; [L627] CALL ssl3_connect() [L9] int s__info_callback = __VERIFIER_nondet_int(); [L10] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L11] int s__state ; [L12] int s__new_session ; [L13] int s__server ; [L14] unsigned int s__version = __VERIFIER_nondet_uint(); [L15] int s__type ; [L16] int s__init_num ; [L17] int s__bbio = __VERIFIER_nondet_int(); [L18] int s__wbio = __VERIFIER_nondet_int(); [L19] int s__hit = __VERIFIER_nondet_int(); [L20] int s__rwstate ; [L21] int s__init_buf___0 ; [L22] int s__debug = __VERIFIER_nondet_int(); [L23] int s__shutdown ; [L24] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L25] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L26] unsigned int s__ctx__stats__sess_connect ; [L27] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L29] int s__s3__change_cipher_spec ; [L30] int s__s3__flags ; [L31] int s__s3__delay_buf_pop_ret ; [L32] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L33] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__next_state___0 ; [L38] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L39] int s__session__cipher ; [L40] int s__session__compress_meth ; [L41] int buf ; [L42] unsigned long tmp ; [L43] unsigned long l ; [L44] int num1 ; [L45] int cb ; [L46] int ret ; [L47] int new_state ; [L48] int state ; [L49] int skip ; [L50] int tmp___0 ; [L51] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L52] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L53] int tmp___3 = __VERIFIER_nondet_int(); [L54] int tmp___4 = __VERIFIER_nondet_int(); [L55] int tmp___5 = __VERIFIER_nondet_int(); [L56] int tmp___6 = __VERIFIER_nondet_int(); [L57] int tmp___7 = __VERIFIER_nondet_int(); [L58] int tmp___8 = __VERIFIER_nondet_int(); [L59] int tmp___9 = __VERIFIER_nondet_int(); [L60] int blastFlag ; [L61] int ag_X ; [L62] int ag_Y ; [L63] int ag_Z ; [L64] int __retres60 ; [L67] s__state = 12292 [L68] blastFlag = 0 [L69] tmp = __VERIFIER_nondet_int() [L70] cb = 0 [L71] ret = -1 [L72] skip = 0 [L73] tmp___0 = 0 [L74] COND TRUE s__info_callback != 0 [L75] cb = s__info_callback [L83] s__in_handshake = s__in_handshake + 1 [L84] COND FALSE !(tmp___1 + 12288) [L93] COND TRUE \read(s__hit) [L94] ag_Y = 208 [L99] COND TRUE 1 [L101] state = s__state [L102] COND TRUE s__state == 12292 [L205] s__new_session = 1 [L206] s__state = 4096 [L207] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L212] s__server = 0 [L213] COND TRUE cb != 0 [L218] COND FALSE !(s__version + 65280 != 768) [L224] s__type = 4096 [L225] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L243] COND FALSE !(! tmp___4) [L249] COND FALSE !(! tmp___5) [L255] s__state = 4368 [L256] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L257] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND TRUE s__state == 4368 [L261] s__shutdown = 0 [L262] ret = __VERIFIER_nondet_int() [L263] COND TRUE blastFlag == 0 [L264] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] ag_X = s__state - 32 [L275] s__init_num = 0 [L276] COND TRUE (unsigned long )s__bbio != (unsigned long )s__wbio [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND TRUE s__state == 4384 [L284] ret = __VERIFIER_nondet_int() [L285] COND TRUE blastFlag == 1 [L286] blastFlag = 2 [L294] COND FALSE !(ret <= 0) [L299] s__state = ag_X [L300] COND TRUE \read(s__hit) [L301] s__state = s__state | ag_Y [L305] s__init_num = 0 [L572] COND FALSE !(! s__s3__tmp__reuse_message) [L601] skip = 0 [L99] COND TRUE 1 [L101] state = s__state [L102] COND FALSE !(s__state == 12292) [L105] COND FALSE !(s__state == 16384) [L108] COND FALSE !(s__state == 4096) [L111] COND FALSE !(s__state == 20480) [L114] COND FALSE !(s__state == 4099) [L117] COND FALSE !(s__state == 4368) [L120] COND FALSE !(s__state == 4369) [L123] COND FALSE !(s__state == 4384) [L126] COND FALSE !(s__state == 4385) [L129] COND FALSE !(s__state == 4400) [L132] COND FALSE !(s__state == 4401) [L135] COND FALSE !(s__state == 4416) [L138] COND FALSE !(s__state == 4417) [L141] COND TRUE s__state == 4432 [L351] ret = __VERIFIER_nondet_int() [L352] COND TRUE blastFlag <= 5 [L614] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 134 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 565 SDtfs, 37 SDslu, 286 SDs, 0 SdLazy, 283 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 8203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 19/19 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...