/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:25:39,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:25:39,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:25:39,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:25:39,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:25:39,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:25:39,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:25:39,323 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:25:39,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:25:39,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:25:39,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:25:39,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:25:39,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:25:39,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:25:39,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:25:39,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:25:39,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:25:39,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:25:39,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:25:39,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:25:39,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:25:39,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:25:39,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:25:39,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:25:39,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:25:39,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:25:39,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:25:39,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:25:39,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:25:39,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:25:39,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:25:39,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:25:39,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:25:39,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:25:39,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:25:39,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:25:39,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:25:39,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:25:39,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:25:39,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:25:39,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:25:39,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:25:39,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:25:39,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:25:39,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:25:39,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:25:39,437 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:25:39,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:25:39,438 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:25:39,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:25:39,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:25:39,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:25:39,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:25:39,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:25:39,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:25:39,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:25:39,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:25:39,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:25:39,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:25:39,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:25:39,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:25:39,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:25:39,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:25:39,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:25:39,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:25:39,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:25:39,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:25:39,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:25:39,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:25:39,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:25:39,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:25:39,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:25:39,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:25:39,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:25:39,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:25:39,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:25:39,993 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:25:39,994 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-25 13:25:40,090 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e09f9ec8a/70f8449194114250a47df3d43c177084/FLAGe90b30a1b [2020-09-25 13:25:40,682 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:25:40,683 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_1.cil-2.c [2020-09-25 13:25:40,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e09f9ec8a/70f8449194114250a47df3d43c177084/FLAGe90b30a1b [2020-09-25 13:25:40,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e09f9ec8a/70f8449194114250a47df3d43c177084 [2020-09-25 13:25:41,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:25:41,019 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:25:41,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:25:41,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:25:41,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:25:41,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:25:40" (1/1) ... [2020-09-25 13:25:41,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693e2903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41, skipping insertion in model container [2020-09-25 13:25:41,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:25:40" (1/1) ... [2020-09-25 13:25:41,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:25:41,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:25:41,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:25:41,415 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:25:41,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:25:41,583 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:25:41,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41 WrapperNode [2020-09-25 13:25:41,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:25:41,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:25:41,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:25:41,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:25:41,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (1/1) ... [2020-09-25 13:25:41,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (1/1) ... [2020-09-25 13:25:41,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (1/1) ... [2020-09-25 13:25:41,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (1/1) ... [2020-09-25 13:25:41,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (1/1) ... [2020-09-25 13:25:41,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (1/1) ... [2020-09-25 13:25:41,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (1/1) ... [2020-09-25 13:25:41,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:25:41,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:25:41,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:25:41,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:25:41,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:25:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:25:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:25:41,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 13:25:41,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:25:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:25:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 13:25:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:25:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 13:25:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 13:25:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:25:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:25:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:25:41,938 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 13:25:42,657 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-25 13:25:42,658 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-25 13:25:42,691 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:25:42,691 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 13:25:42,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:25:42 BoogieIcfgContainer [2020-09-25 13:25:42,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:25:42,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:25:42,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:25:42,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:25:42,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:25:40" (1/3) ... [2020-09-25 13:25:42,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c68e5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:25:42, skipping insertion in model container [2020-09-25 13:25:42,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:25:41" (2/3) ... [2020-09-25 13:25:42,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c68e5a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:25:42, skipping insertion in model container [2020-09-25 13:25:42,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:25:42" (3/3) ... [2020-09-25 13:25:42,709 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-2.c [2020-09-25 13:25:42,721 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:25:42,733 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:25:42,755 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:25:42,793 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:25:42,793 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:25:42,793 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:25:42,793 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:25:42,794 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:25:42,794 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:25:42,794 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:25:42,794 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:25:42,825 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2020-09-25 13:25:42,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 13:25:42,845 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:42,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:42,847 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:42,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:42,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1836119895, now seen corresponding path program 1 times [2020-09-25 13:25:42,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:42,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1240379178] [2020-09-25 13:25:42,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:43,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:43,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:43,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:43,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:44,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:44,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 13:25:44,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1095 [2020-09-25 13:25:44,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:44,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:25:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 13:25:44,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 13:25:44,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:25:44,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:44,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:44,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:44,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:25:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:44,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:44,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:44,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:25:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:25:44,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1240379178] [2020-09-25 13:25:44,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:44,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:25:44,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532352479] [2020-09-25 13:25:44,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:25:44,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:44,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:25:44,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:25:44,591 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 5 states. [2020-09-25 13:25:44,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:44,883 INFO L93 Difference]: Finished difference Result 626 states and 801 transitions. [2020-09-25 13:25:44,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:25:44,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-09-25 13:25:44,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:44,907 INFO L225 Difference]: With dead ends: 626 [2020-09-25 13:25:44,907 INFO L226 Difference]: Without dead ends: 344 [2020-09-25 13:25:44,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:25:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-09-25 13:25:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2020-09-25 13:25:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 13:25:44,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 401 transitions. [2020-09-25 13:25:44,992 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 401 transitions. Word has length 160 [2020-09-25 13:25:44,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:44,994 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 401 transitions. [2020-09-25 13:25:44,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:25:44,994 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 401 transitions. [2020-09-25 13:25:44,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 13:25:44,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:44,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:44,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:25:44,999 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:44,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:45,000 INFO L82 PathProgramCache]: Analyzing trace with hash 933719357, now seen corresponding path program 1 times [2020-09-25 13:25:45,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:45,000 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881327575] [2020-09-25 13:25:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:45,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:45,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:45,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:45,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:45,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 13:25:45,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:45,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-09-25 13:25:45,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:45,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:45,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 134 [2020-09-25 13:25:45,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 13:25:45,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:45,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:45,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:45,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:45,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:45,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:45,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:45,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:45,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:45,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:45,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:45,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:25:45,485 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881327575] [2020-09-25 13:25:45,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:45,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:45,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628242810] [2020-09-25 13:25:45,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:45,488 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:45,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:45,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:45,489 INFO L87 Difference]: Start difference. First operand 344 states and 401 transitions. Second operand 3 states. [2020-09-25 13:25:45,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:45,555 INFO L93 Difference]: Finished difference Result 735 states and 899 transitions. [2020-09-25 13:25:45,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:45,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-09-25 13:25:45,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:45,561 INFO L225 Difference]: With dead ends: 735 [2020-09-25 13:25:45,561 INFO L226 Difference]: Without dead ends: 536 [2020-09-25 13:25:45,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:45,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-25 13:25:45,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2020-09-25 13:25:45,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-25 13:25:45,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 642 transitions. [2020-09-25 13:25:45,598 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 642 transitions. Word has length 183 [2020-09-25 13:25:45,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:45,598 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 642 transitions. [2020-09-25 13:25:45,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:45,599 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 642 transitions. [2020-09-25 13:25:45,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 13:25:45,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:45,604 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:45,604 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:25:45,604 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:45,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:45,605 INFO L82 PathProgramCache]: Analyzing trace with hash -1378664763, now seen corresponding path program 1 times [2020-09-25 13:25:45,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:45,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948853973] [2020-09-25 13:25:45,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:45,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:45,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:45,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:45,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:45,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 13:25:45,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:45,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-25 13:25:45,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:45,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 13:25:45,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:25:45,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:45,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:45,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:45,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:45,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:45,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:45,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:45,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:45,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:45,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:45,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:45,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:45,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:25:46,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948853973] [2020-09-25 13:25:46,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:46,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:46,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996048211] [2020-09-25 13:25:46,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:46,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:46,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:46,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:46,044 INFO L87 Difference]: Start difference. First operand 536 states and 642 transitions. Second operand 3 states. [2020-09-25 13:25:46,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:46,315 INFO L93 Difference]: Finished difference Result 1068 states and 1355 transitions. [2020-09-25 13:25:46,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:46,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2020-09-25 13:25:46,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:46,320 INFO L225 Difference]: With dead ends: 1068 [2020-09-25 13:25:46,320 INFO L226 Difference]: Without dead ends: 677 [2020-09-25 13:25:46,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-09-25 13:25:46,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 624. [2020-09-25 13:25:46,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-09-25 13:25:46,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 750 transitions. [2020-09-25 13:25:46,346 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 750 transitions. Word has length 203 [2020-09-25 13:25:46,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:46,347 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 750 transitions. [2020-09-25 13:25:46,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:46,347 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 750 transitions. [2020-09-25 13:25:46,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 13:25:46,350 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:46,351 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:46,351 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:25:46,351 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:46,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:46,352 INFO L82 PathProgramCache]: Analyzing trace with hash -2019314839, now seen corresponding path program 1 times [2020-09-25 13:25:46,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:46,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662810712] [2020-09-25 13:25:46,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:46,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:46,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:46,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:46,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:47,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:47,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-09-25 13:25:47,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:25:47,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-25 13:25:47,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:47,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:47,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:47,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 13:25:47,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 13:25:47,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 13:25:47,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:47,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:47,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:47,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:47,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:47,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:47,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:47,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:47,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:47,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:47,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:25:47,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662810712] [2020-09-25 13:25:47,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:47,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:47,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100847432] [2020-09-25 13:25:47,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:47,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:47,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:47,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:47,537 INFO L87 Difference]: Start difference. First operand 624 states and 750 transitions. Second operand 3 states. [2020-09-25 13:25:47,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:47,614 INFO L93 Difference]: Finished difference Result 1103 states and 1356 transitions. [2020-09-25 13:25:47,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:47,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-09-25 13:25:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:47,623 INFO L225 Difference]: With dead ends: 1103 [2020-09-25 13:25:47,624 INFO L226 Difference]: Without dead ends: 860 [2020-09-25 13:25:47,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:47,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2020-09-25 13:25:47,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 860. [2020-09-25 13:25:47,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 860 states. [2020-09-25 13:25:47,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1046 transitions. [2020-09-25 13:25:47,651 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1046 transitions. Word has length 210 [2020-09-25 13:25:47,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:47,652 INFO L479 AbstractCegarLoop]: Abstraction has 860 states and 1046 transitions. [2020-09-25 13:25:47,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:47,652 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1046 transitions. [2020-09-25 13:25:47,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 13:25:47,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:47,656 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:47,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:25:47,656 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:47,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:47,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1362043361, now seen corresponding path program 1 times [2020-09-25 13:25:47,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:47,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048465448] [2020-09-25 13:25:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:47,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:47,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:48,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:48,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 13:25:48,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:25:48,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-09-25 13:25:48,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:48,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:48,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:48,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 208 [2020-09-25 13:25:48,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 13:25:48,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:48,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:48,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:48,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:48,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:48,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:48,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:25:48,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:48,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:48,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:48,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:48,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:25:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 13:25:48,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048465448] [2020-09-25 13:25:48,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:48,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:48,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858822503] [2020-09-25 13:25:48,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:48,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:48,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:48,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:48,174 INFO L87 Difference]: Start difference. First operand 860 states and 1046 transitions. Second operand 3 states. [2020-09-25 13:25:48,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:48,507 INFO L93 Difference]: Finished difference Result 1761 states and 2243 transitions. [2020-09-25 13:25:48,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:48,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 13:25:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:48,514 INFO L225 Difference]: With dead ends: 1761 [2020-09-25 13:25:48,514 INFO L226 Difference]: Without dead ends: 1043 [2020-09-25 13:25:48,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:48,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2020-09-25 13:25:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 992. [2020-09-25 13:25:48,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 992 states. [2020-09-25 13:25:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 992 states to 992 states and 1205 transitions. [2020-09-25 13:25:48,556 INFO L78 Accepts]: Start accepts. Automaton has 992 states and 1205 transitions. Word has length 224 [2020-09-25 13:25:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:48,557 INFO L479 AbstractCegarLoop]: Abstraction has 992 states and 1205 transitions. [2020-09-25 13:25:48,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 992 states and 1205 transitions. [2020-09-25 13:25:48,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-25 13:25:48,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:48,566 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:48,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:25:48,567 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:48,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:48,567 INFO L82 PathProgramCache]: Analyzing trace with hash -481557951, now seen corresponding path program 1 times [2020-09-25 13:25:48,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:48,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432911525] [2020-09-25 13:25:48,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:48,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:48,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:48,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:49,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 233 [2020-09-25 13:25:49,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:49,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 614 [2020-09-25 13:25:49,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:49,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-09-25 13:25:49,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 13:25:49,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:49,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:49,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:49,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:49,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:49,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:25:49,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:49,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:49,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:49,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:49,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:49,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:25:49,369 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 13:25:49,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432911525] [2020-09-25 13:25:49,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:49,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:49,371 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547585456] [2020-09-25 13:25:49,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:49,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:49,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:49,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:49,372 INFO L87 Difference]: Start difference. First operand 992 states and 1205 transitions. Second operand 3 states. [2020-09-25 13:25:49,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:49,459 INFO L93 Difference]: Finished difference Result 1839 states and 2266 transitions. [2020-09-25 13:25:49,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:49,460 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-09-25 13:25:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:49,469 INFO L225 Difference]: With dead ends: 1839 [2020-09-25 13:25:49,469 INFO L226 Difference]: Without dead ends: 1272 [2020-09-25 13:25:49,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:49,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2020-09-25 13:25:49,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2020-09-25 13:25:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1272 states. [2020-09-25 13:25:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1555 transitions. [2020-09-25 13:25:49,514 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1555 transitions. Word has length 224 [2020-09-25 13:25:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:49,515 INFO L479 AbstractCegarLoop]: Abstraction has 1272 states and 1555 transitions. [2020-09-25 13:25:49,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1555 transitions. [2020-09-25 13:25:49,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-09-25 13:25:49,525 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:49,525 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:49,526 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:25:49,526 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:49,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:49,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1037157879, now seen corresponding path program 1 times [2020-09-25 13:25:49,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:49,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845360413] [2020-09-25 13:25:49,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:49,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:49,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:49,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 256 [2020-09-25 13:25:49,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:25:49,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-09-25 13:25:49,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:49,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:25:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-09-25 13:25:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 13:25:49,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:50,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:25:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:25:50,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:25:50,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:25:50,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:25:50,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:25:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:25:50,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:25:50,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:25:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:25:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:25:50,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:25:50,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:25:50,098 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-25 13:25:50,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845360413] [2020-09-25 13:25:50,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:25:50,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 13:25:50,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106804299] [2020-09-25 13:25:50,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 13:25:50,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:25:50,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 13:25:50,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:50,100 INFO L87 Difference]: Start difference. First operand 1272 states and 1555 transitions. Second operand 3 states. [2020-09-25 13:25:50,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:25:50,167 INFO L93 Difference]: Finished difference Result 2399 states and 2966 transitions. [2020-09-25 13:25:50,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 13:25:50,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-09-25 13:25:50,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:25:50,176 INFO L225 Difference]: With dead ends: 2399 [2020-09-25 13:25:50,177 INFO L226 Difference]: Without dead ends: 1552 [2020-09-25 13:25:50,180 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 13:25:50,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2020-09-25 13:25:50,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1552. [2020-09-25 13:25:50,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1552 states. [2020-09-25 13:25:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 1906 transitions. [2020-09-25 13:25:50,229 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 1906 transitions. Word has length 247 [2020-09-25 13:25:50,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:25:50,229 INFO L479 AbstractCegarLoop]: Abstraction has 1552 states and 1906 transitions. [2020-09-25 13:25:50,229 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 13:25:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 1906 transitions. [2020-09-25 13:25:50,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2020-09-25 13:25:50,239 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:25:50,240 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:25:50,240 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:25:50,240 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:25:50,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:25:50,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1703791530, now seen corresponding path program 1 times [2020-09-25 13:25:50,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:25:50,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619414599] [2020-09-25 13:25:50,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:25:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 13:25:50,289 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 13:25:50,289 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 13:25:50,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 13:25:50,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:25:50 BoogieIcfgContainer [2020-09-25 13:25:50,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 13:25:50,338 INFO L168 Benchmark]: Toolchain (without parser) took 9322.78 ms. Allocated memory was 140.0 MB in the beginning and 382.7 MB in the end (delta: 242.7 MB). Free memory was 101.3 MB in the beginning and 224.4 MB in the end (delta: -123.0 MB). Peak memory consumption was 119.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:50,339 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 13:25:50,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.25 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 100.7 MB in the beginning and 177.7 MB in the end (delta: -77.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:50,341 INFO L168 Benchmark]: Boogie Preprocessor took 68.76 ms. Allocated memory is still 201.9 MB. Free memory was 177.7 MB in the beginning and 174.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:50,342 INFO L168 Benchmark]: RCFGBuilder took 1045.75 ms. Allocated memory is still 201.9 MB. Free memory was 174.7 MB in the beginning and 110.9 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:50,343 INFO L168 Benchmark]: TraceAbstraction took 7634.07 ms. Allocated memory was 201.9 MB in the beginning and 382.7 MB in the end (delta: 180.9 MB). Free memory was 110.3 MB in the beginning and 224.4 MB in the end (delta: -114.1 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2020-09-25 13:25:50,347 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 564.25 ms. Allocated memory was 140.0 MB in the beginning and 201.9 MB in the end (delta: 61.9 MB). Free memory was 100.7 MB in the beginning and 177.7 MB in the end (delta: -77.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 68.76 ms. Allocated memory is still 201.9 MB. Free memory was 177.7 MB in the beginning and 174.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1045.75 ms. Allocated memory is still 201.9 MB. Free memory was 174.7 MB in the beginning and 110.9 MB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7634.07 ms. Allocated memory was 201.9 MB in the beginning and 382.7 MB in the end (delta: 180.9 MB). Free memory was 110.3 MB in the beginning and 224.4 MB in the end (delta: -114.1 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L548] int s ; [L552] s = 12292 [L553] CALL ssl3_connect(12292) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L76] s__state = initial_state [L77] blastFlag = 0 [L78] tmp = __VERIFIER_nondet_int() [L79] cb = 0 [L80] ret = -1 [L81] skip = 0 [L82] tmp___0 = 0 [L83] COND TRUE s__info_callback != 0 [L84] cb = s__info_callback [L90] s__in_handshake ++ [L91] COND FALSE !(tmp___1 - 12288) [L97] COND TRUE 1 [L99] state = s__state [L100] COND TRUE s__state == 12292 [L202] s__new_session = 1 [L203] s__state = 4096 [L204] s__ctx__stats__sess_connect_renegotiate ++ [L209] s__server = 0 [L210] COND TRUE cb != 0 [L214] __cil_tmp55 = s__version - 65280 [L215] COND FALSE !(__cil_tmp55 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L233] COND FALSE !(! tmp___4) [L237] COND FALSE !(! tmp___5) [L241] s__state = 4368 [L242] s__ctx__stats__sess_connect ++ [L243] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND TRUE s__state == 4368 [L247] s__shutdown = 0 [L248] ret = __VERIFIER_nondet_int() [L249] COND TRUE blastFlag == 0 [L250] blastFlag = 1 [L252] COND FALSE !(ret <= 0) [L255] s__state = 4384 [L256] s__init_num = 0 [L257] COND TRUE s__bbio != s__wbio [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND TRUE s__state == 4384 [L263] ret = __VERIFIER_nondet_int() [L264] COND TRUE blastFlag == 1 [L265] blastFlag = 2 [L267] COND FALSE !(ret <= 0) [L270] COND FALSE !(\read(s__hit)) [L273] s__state = 4400 [L275] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND TRUE s__state == 4400 [L279] COND FALSE !(s__s3__tmp__new_cipher__algorithms - 256) [L282] ret = __VERIFIER_nondet_int() [L283] COND TRUE blastFlag == 2 [L284] blastFlag = 3 [L286] COND FALSE !(ret <= 0) [L290] s__state = 4416 [L291] s__init_num = 0 [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND TRUE s__state == 4416 [L295] ret = __VERIFIER_nondet_int() [L296] COND TRUE blastFlag == 3 [L297] blastFlag = 4 [L299] COND FALSE !(ret <= 0) [L302] s__state = 4432 [L303] s__init_num = 0 [L304] COND FALSE !(! tmp___6) [L515] COND FALSE !(! s__s3__tmp__reuse_message) [L532] skip = 0 [L97] COND TRUE 1 [L99] state = s__state [L100] COND FALSE !(s__state == 12292) [L103] COND FALSE !(s__state == 16384) [L106] COND FALSE !(s__state == 4096) [L109] COND FALSE !(s__state == 20480) [L112] COND FALSE !(s__state == 4099) [L115] COND FALSE !(s__state == 4368) [L118] COND FALSE !(s__state == 4369) [L121] COND FALSE !(s__state == 4384) [L124] COND FALSE !(s__state == 4385) [L127] COND FALSE !(s__state == 4400) [L130] COND FALSE !(s__state == 4401) [L133] COND FALSE !(s__state == 4416) [L136] COND FALSE !(s__state == 4417) [L139] COND TRUE s__state == 4432 [L311] ret = __VERIFIER_nondet_int() [L312] COND TRUE blastFlag == 4 [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 383 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.5s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2810 SDtfs, 1878 SDslu, 2376 SDs, 0 SdLazy, 438 SolverSat, 95 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1552occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 104 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 1723 NumberOfCodeBlocks, 1723 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1444 ConstructedInterpolants, 0 QuantifiedInterpolants, 506282 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 197/197 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...