/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=NARROWEST --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-c90d42b [2020-09-25 02:00:14,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:00:14,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:00:14,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:00:14,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:00:14,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:00:14,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:00:14,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:00:14,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:00:14,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:00:14,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:00:14,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:00:14,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:00:14,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:00:14,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:00:14,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:00:14,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:00:14,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:00:14,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:00:14,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:00:14,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:00:14,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:00:14,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:00:14,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:00:14,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:00:14,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:00:14,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:00:14,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:00:14,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:00:14,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:00:14,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:00:14,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:00:14,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:00:14,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:00:14,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:00:14,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:00:14,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:00:14,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:00:14,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:00:14,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:00:14,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:00:14,617 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 02:00:14,644 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:00:14,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:00:14,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:00:14,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:00:14,646 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:00:14,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:00:14,646 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:00:14,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:00:14,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:00:14,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:00:14,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:00:14,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:00:14,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:00:14,648 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:00:14,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:00:14,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:00:14,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:00:14,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:00:14,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:00:14,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:00:14,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:00:14,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:00:14,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:00:14,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:00:14,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:00:14,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:00:14,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:00:14,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:00:14,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:00:14,651 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:00:15,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:00:15,181 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:00:15,185 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:00:15,187 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:00:15,188 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:00:15,189 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 02:00:15,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dade2c08/cc7d041eca4f475a873faea4ae071d0f/FLAG258e5700a [2020-09-25 02:00:15,801 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:00:15,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-09-25 02:00:15,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dade2c08/cc7d041eca4f475a873faea4ae071d0f/FLAG258e5700a [2020-09-25 02:00:16,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dade2c08/cc7d041eca4f475a873faea4ae071d0f [2020-09-25 02:00:16,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:00:16,122 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:00:16,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:16,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:00:16,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:00:16,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2e2a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16, skipping insertion in model container [2020-09-25 02:00:16,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:00:16,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:00:16,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:16,540 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:00:16,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:00:16,712 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:00:16,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16 WrapperNode [2020-09-25 02:00:16,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:00:16,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:00:16,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:00:16,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:00:16,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (1/1) ... [2020-09-25 02:00:16,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:00:16,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:00:16,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:00:16,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:00:16,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (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 02:00:16,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:00:16,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:00:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-25 02:00:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:00:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:00:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:00:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 02:00:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-25 02:00:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:00:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:00:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:00:17,107 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 02:00:17,691 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-09-25 02:00:17,692 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-09-25 02:00:17,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:00:17,718 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 02:00:17,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:17 BoogieIcfgContainer [2020-09-25 02:00:17,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:00:17,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:00:17,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:00:17,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:00:17,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:00:16" (1/3) ... [2020-09-25 02:00:17,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710061a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:17, skipping insertion in model container [2020-09-25 02:00:17,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:00:16" (2/3) ... [2020-09-25 02:00:17,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710061a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:00:17, skipping insertion in model container [2020-09-25 02:00:17,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:00:17" (3/3) ... [2020-09-25 02:00:17,735 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-09-25 02:00:17,746 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:00:17,756 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:00:17,778 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:00:17,809 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:00:17,809 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:00:17,809 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:00:17,809 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:00:17,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:00:17,810 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:00:17,810 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:00:17,810 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:00:17,837 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-25 02:00:17,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:00:17,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:17,856 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] [2020-09-25 02:00:17,857 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:17,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:17,865 INFO L82 PathProgramCache]: Analyzing trace with hash 663725490, now seen corresponding path program 1 times [2020-09-25 02:00:17,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:17,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1609992390] [2020-09-25 02:00:17,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:18,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:18,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:18,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:18,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 02:00:18,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:18,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 385 [2020-09-25 02:00:18,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:18,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-09-25 02:00:18,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:00:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:00:18,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:18,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:18,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:18,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:18,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:18,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:18,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:18,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:18,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:18,580 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 02:00:18,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1609992390] [2020-09-25 02:00:18,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:18,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:00:18,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008893003] [2020-09-25 02:00:18,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:00:18,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:18,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:00:18,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:00:18,612 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 3 states. [2020-09-25 02:00:18,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:18,829 INFO L93 Difference]: Finished difference Result 577 states and 753 transitions. [2020-09-25 02:00:18,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:00:18,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 02:00:18,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:18,849 INFO L225 Difference]: With dead ends: 577 [2020-09-25 02:00:18,849 INFO L226 Difference]: Without dead ends: 317 [2020-09-25 02:00:18,856 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 02:00:18,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-25 02:00:18,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-09-25 02:00:18,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-09-25 02:00:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 375 transitions. [2020-09-25 02:00:18,927 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 375 transitions. Word has length 142 [2020-09-25 02:00:18,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:18,928 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 375 transitions. [2020-09-25 02:00:18,929 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:00:18,929 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 375 transitions. [2020-09-25 02:00:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 02:00:18,932 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:18,933 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] [2020-09-25 02:00:18,933 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:00:18,933 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:18,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:18,934 INFO L82 PathProgramCache]: Analyzing trace with hash 980116923, now seen corresponding path program 1 times [2020-09-25 02:00:18,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:18,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480640624] [2020-09-25 02:00:18,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:18,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:19,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:19,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:19,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-09-25 02:00:19,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:19,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-09-25 02:00:19,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 02:00:19,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:00:19,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:19,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:19,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:19,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:19,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:19,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:19,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:19,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:19,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:19,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:00:19,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480640624] [2020-09-25 02:00:19,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:19,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:00:19,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505876003] [2020-09-25 02:00:19,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:00:19,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:19,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:00:19,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:00:19,363 INFO L87 Difference]: Start difference. First operand 317 states and 375 transitions. Second operand 3 states. [2020-09-25 02:00:19,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:19,520 INFO L93 Difference]: Finished difference Result 534 states and 657 transitions. [2020-09-25 02:00:19,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:00:19,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2020-09-25 02:00:19,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:19,524 INFO L225 Difference]: With dead ends: 534 [2020-09-25 02:00:19,525 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 02:00:19,526 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 02:00:19,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 02:00:19,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 335. [2020-09-25 02:00:19,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-25 02:00:19,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 398 transitions. [2020-09-25 02:00:19,545 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 398 transitions. Word has length 160 [2020-09-25 02:00:19,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:19,546 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 398 transitions. [2020-09-25 02:00:19,546 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:00:19,546 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 398 transitions. [2020-09-25 02:00:19,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 02:00:19,549 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:19,550 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] [2020-09-25 02:00:19,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:00:19,550 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:19,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:19,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1724791051, now seen corresponding path program 1 times [2020-09-25 02:00:19,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:19,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171134857] [2020-09-25 02:00:19,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:19,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:19,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:20,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:20,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-25 02:00:20,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:20,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 441 [2020-09-25 02:00:20,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:20,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 02:00:20,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 02:00:20,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:20,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:20,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:20,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:20,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:20,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:20,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:20,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:20,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:20,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:20,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:20,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:00:20,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171134857] [2020-09-25 02:00:20,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:20,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:00:20,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291194212] [2020-09-25 02:00:20,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:00:20,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:20,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:00:20,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:00:20,123 INFO L87 Difference]: Start difference. First operand 335 states and 398 transitions. Second operand 4 states. [2020-09-25 02:00:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:20,439 INFO L93 Difference]: Finished difference Result 776 states and 963 transitions. [2020-09-25 02:00:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:00:20,440 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2020-09-25 02:00:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:20,444 INFO L225 Difference]: With dead ends: 776 [2020-09-25 02:00:20,444 INFO L226 Difference]: Without dead ends: 569 [2020-09-25 02:00:20,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:00:20,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2020-09-25 02:00:20,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 338. [2020-09-25 02:00:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-09-25 02:00:20,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 401 transitions. [2020-09-25 02:00:20,463 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 401 transitions. Word has length 167 [2020-09-25 02:00:20,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:20,463 INFO L479 AbstractCegarLoop]: Abstraction has 338 states and 401 transitions. [2020-09-25 02:00:20,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:00:20,464 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 401 transitions. [2020-09-25 02:00:20,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 02:00:20,466 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:20,466 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] [2020-09-25 02:00:20,467 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:00:20,467 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:20,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:20,467 INFO L82 PathProgramCache]: Analyzing trace with hash -2007825220, now seen corresponding path program 1 times [2020-09-25 02:00:20,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:20,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470012117] [2020-09-25 02:00:20,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:20,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:20,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:20,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:20,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:20,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 02:00:20,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:00:20,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-09-25 02:00:20,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 02:00:20,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 02:00:20,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:20,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:20,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:20,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:20,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:20,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:00:20,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:20,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:20,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:20,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:00:20,852 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 02:00:20,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470012117] [2020-09-25 02:00:20,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:20,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:00:20,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983776687] [2020-09-25 02:00:20,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:00:20,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:20,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:00:20,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:00:20,856 INFO L87 Difference]: Start difference. First operand 338 states and 401 transitions. Second operand 3 states. [2020-09-25 02:00:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:20,999 INFO L93 Difference]: Finished difference Result 579 states and 715 transitions. [2020-09-25 02:00:20,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:00:20,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 02:00:21,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:21,002 INFO L225 Difference]: With dead ends: 579 [2020-09-25 02:00:21,002 INFO L226 Difference]: Without dead ends: 369 [2020-09-25 02:00:21,003 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 02:00:21,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2020-09-25 02:00:21,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 358. [2020-09-25 02:00:21,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-09-25 02:00:21,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 426 transitions. [2020-09-25 02:00:21,014 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 426 transitions. Word has length 180 [2020-09-25 02:00:21,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:21,015 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 426 transitions. [2020-09-25 02:00:21,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:00:21,015 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 426 transitions. [2020-09-25 02:00:21,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 02:00:21,018 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:21,018 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] [2020-09-25 02:00:21,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:00:21,019 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:21,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:21,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1814721748, now seen corresponding path program 1 times [2020-09-25 02:00:21,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:21,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1622995960] [2020-09-25 02:00:21,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:21,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:21,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:21,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:21,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:21,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:21,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 02:00:21,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:00:21,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 770 [2020-09-25 02:00:21,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 02:00:21,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 02:00:21,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:21,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:21,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:21,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:21,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:21,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:21,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:00:21,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:21,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:21,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:21,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:21,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:21,934 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:00:21,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1622995960] [2020-09-25 02:00:21,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:21,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:00:21,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799124827] [2020-09-25 02:00:21,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:00:21,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:21,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:00:21,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:00:21,937 INFO L87 Difference]: Start difference. First operand 358 states and 426 transitions. Second operand 3 states. [2020-09-25 02:00:21,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:21,959 INFO L93 Difference]: Finished difference Result 788 states and 970 transitions. [2020-09-25 02:00:21,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:00:21,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2020-09-25 02:00:21,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:21,966 INFO L225 Difference]: With dead ends: 788 [2020-09-25 02:00:21,966 INFO L226 Difference]: Without dead ends: 558 [2020-09-25 02:00:21,968 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 02:00:21,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-09-25 02:00:21,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 556. [2020-09-25 02:00:21,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-09-25 02:00:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 673 transitions. [2020-09-25 02:00:21,988 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 673 transitions. Word has length 187 [2020-09-25 02:00:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:21,989 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 673 transitions. [2020-09-25 02:00:21,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:00:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 673 transitions. [2020-09-25 02:00:21,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-09-25 02:00:21,993 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:21,994 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] [2020-09-25 02:00:21,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:00:21,994 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:21,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1041585057, now seen corresponding path program 1 times [2020-09-25 02:00:21,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:21,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990845519] [2020-09-25 02:00:21,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:22,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:22,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:22,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:22,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:23,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:23,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 02:00:23,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:00:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1036 [2020-09-25 02:00:23,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:00:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 02:00:23,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 02:00:23,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:23,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:23,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:23,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:23,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:23,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:23,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:00:23,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:23,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:23,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:23,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:23,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 02:00:23,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990845519] [2020-09-25 02:00:23,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:23,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 02:00:23,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208762190] [2020-09-25 02:00:23,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 02:00:23,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:23,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 02:00:23,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 02:00:23,169 INFO L87 Difference]: Start difference. First operand 556 states and 673 transitions. Second operand 4 states. [2020-09-25 02:00:23,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:23,508 INFO L93 Difference]: Finished difference Result 1459 states and 1816 transitions. [2020-09-25 02:00:23,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 02:00:23,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 188 [2020-09-25 02:00:23,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:23,514 INFO L225 Difference]: With dead ends: 1459 [2020-09-25 02:00:23,514 INFO L226 Difference]: Without dead ends: 1031 [2020-09-25 02:00:23,516 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:00:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2020-09-25 02:00:23,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 559. [2020-09-25 02:00:23,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-09-25 02:00:23,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 676 transitions. [2020-09-25 02:00:23,537 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 676 transitions. Word has length 188 [2020-09-25 02:00:23,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:23,537 INFO L479 AbstractCegarLoop]: Abstraction has 559 states and 676 transitions. [2020-09-25 02:00:23,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 02:00:23,538 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 676 transitions. [2020-09-25 02:00:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-25 02:00:23,540 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:23,540 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] [2020-09-25 02:00:23,541 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 02:00:23,541 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:23,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:23,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1391767700, now seen corresponding path program 1 times [2020-09-25 02:00:23,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:23,542 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064560324] [2020-09-25 02:00:23,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:23,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:23,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:23,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:23,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 02:00:23,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:00:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-25 02:00:23,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:00:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-09-25 02:00:23,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 02:00:23,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:00:23,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:00:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:00:23,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:00:23,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:00:23,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:00:23,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:00:23,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:00:23,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:00:23,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:00:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:00:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:00:23,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 02:00:24,020 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 02:00:24,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064560324] [2020-09-25 02:00:24,022 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:00:24,023 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:00:24,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91589491] [2020-09-25 02:00:24,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:00:24,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:00:24,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:00:24,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:00:24,026 INFO L87 Difference]: Start difference. First operand 559 states and 676 transitions. Second operand 3 states. [2020-09-25 02:00:24,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:00:24,076 INFO L93 Difference]: Finished difference Result 1049 states and 1287 transitions. [2020-09-25 02:00:24,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:00:24,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2020-09-25 02:00:24,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:00:24,081 INFO L225 Difference]: With dead ends: 1049 [2020-09-25 02:00:24,082 INFO L226 Difference]: Without dead ends: 618 [2020-09-25 02:00:24,084 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 02:00:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-25 02:00:24,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2020-09-25 02:00:24,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-25 02:00:24,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 742 transitions. [2020-09-25 02:00:24,111 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 742 transitions. Word has length 202 [2020-09-25 02:00:24,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:00:24,112 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 742 transitions. [2020-09-25 02:00:24,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:00:24,112 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 742 transitions. [2020-09-25 02:00:24,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 02:00:24,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:00:24,118 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] [2020-09-25 02:00:24,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 02:00:24,119 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:00:24,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:00:24,120 INFO L82 PathProgramCache]: Analyzing trace with hash 192610461, now seen corresponding path program 1 times [2020-09-25 02:00:24,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:00:24,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [688007346] [2020-09-25 02:00:24,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:00:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 02:00:24,161 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 02:00:24,161 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 02:00:24,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 02:00:24,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:00:24 BoogieIcfgContainer [2020-09-25 02:00:24,226 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:00:24,232 INFO L168 Benchmark]: Toolchain (without parser) took 8110.50 ms. Allocated memory was 145.2 MB in the beginning and 328.2 MB in the end (delta: 183.0 MB). Free memory was 101.5 MB in the beginning and 258.6 MB in the end (delta: -157.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:24,239 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 02:00:24,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 589.40 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.8 MB in the beginning and 176.9 MB in the end (delta: -76.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:24,242 INFO L168 Benchmark]: Boogie Preprocessor took 81.86 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 173.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:24,243 INFO L168 Benchmark]: RCFGBuilder took 929.93 ms. Allocated memory is still 201.3 MB. Free memory was 173.7 MB in the beginning and 113.3 MB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2020-09-25 02:00:24,244 INFO L168 Benchmark]: TraceAbstraction took 6499.96 ms. Allocated memory was 201.3 MB in the beginning and 328.2 MB in the end (delta: 126.9 MB). Free memory was 112.6 MB in the beginning and 258.6 MB in the end (delta: -146.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 02:00:24,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 589.40 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 100.8 MB in the beginning and 176.9 MB in the end (delta: -76.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.86 ms. Allocated memory is still 201.3 MB. Free memory was 176.9 MB in the beginning and 173.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 929.93 ms. Allocated memory is still 201.3 MB. Free memory was 173.7 MB in the beginning and 113.3 MB in the end (delta: 60.5 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6499.96 ms. Allocated memory was 201.3 MB in the beginning and 328.2 MB in the end (delta: 126.9 MB). Free memory was 112.6 MB in the beginning and 258.6 MB in the end (delta: -146.1 MB). There was no memory consumed. 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 FALSE !((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, 350 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.3s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3342 SDtfs, 861 SDslu, 3159 SDs, 0 SdLazy, 754 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=618occurred 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: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 726 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1429 NumberOfCodeBlocks, 1429 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1219 ConstructedInterpolants, 0 QuantifiedInterpolants, 272089 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 96/96 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...