/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 SequenceOfStatements --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=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 04:44:25,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 04:44:25,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 04:44:25,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 04:44:25,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 04:44:25,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 04:44:25,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 04:44:25,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 04:44:25,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 04:44:25,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 04:44:25,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 04:44:25,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 04:44:25,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 04:44:25,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 04:44:25,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 04:44:25,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 04:44:25,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 04:44:25,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 04:44:25,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 04:44:25,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 04:44:25,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 04:44:25,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 04:44:25,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 04:44:25,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 04:44:25,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 04:44:25,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 04:44:25,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 04:44:25,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 04:44:25,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 04:44:25,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 04:44:25,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 04:44:25,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 04:44:25,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 04:44:25,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 04:44:25,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 04:44:25,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 04:44:25,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 04:44:25,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 04:44:25,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 04:44:25,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 04:44:25,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 04:44:25,718 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 [2020-10-15 04:44:25,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 04:44:25,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 04:44:25,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 04:44:25,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 04:44:25,775 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 04:44:25,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 04:44:25,776 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 04:44:25,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 04:44:25,776 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 04:44:25,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 04:44:25,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 04:44:25,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 04:44:25,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 04:44:25,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 04:44:25,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 04:44:25,777 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 04:44:25,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 04:44:25,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 04:44:25,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 04:44:25,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 04:44:25,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 04:44:25,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 04:44:25,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 04:44:25,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 04:44:25,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 04:44:25,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 04:44:25,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 04:44:25,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 04:44:25,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 04:44:25,783 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 -> SequenceOfStatements 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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=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=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 04:44:26,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 04:44:26,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 04:44:26,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 04:44:26,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 04:44:26,131 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 04:44:26,131 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-10-15 04:44:26,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f1ca178/7a953e9ffb7d42caaade953e10206380/FLAG51c90bc22 [2020-10-15 04:44:26,729 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 04:44:26,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-10-15 04:44:26,750 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f1ca178/7a953e9ffb7d42caaade953e10206380/FLAG51c90bc22 [2020-10-15 04:44:27,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/43f1ca178/7a953e9ffb7d42caaade953e10206380 [2020-10-15 04:44:27,017 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 04:44:27,019 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 04:44:27,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 04:44:27,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 04:44:27,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 04:44:27,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16dded3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27, skipping insertion in model container [2020-10-15 04:44:27,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 04:44:27,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 04:44:27,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:44:27,353 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 04:44:27,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 04:44:27,570 INFO L208 MainTranslator]: Completed translation [2020-10-15 04:44:27,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27 WrapperNode [2020-10-15 04:44:27,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 04:44:27,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 04:44:27,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 04:44:27,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 04:44:27,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,605 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (1/1) ... [2020-10-15 04:44:27,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 04:44:27,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 04:44:27,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 04:44:27,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 04:44:27,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (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 [2020-10-15 04:44:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 04:44:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 04:44:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-15 04:44:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 04:44:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 04:44:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-10-15 04:44:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 04:44:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-15 04:44:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-15 04:44:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 04:44:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 04:44:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 04:44:27,892 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-15 04:44:28,391 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-15 04:44:28,392 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-15 04:44:28,421 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 04:44:28,421 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-15 04:44:28,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:28 BoogieIcfgContainer [2020-10-15 04:44:28,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 04:44:28,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 04:44:28,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 04:44:28,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 04:44:28,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:44:27" (1/3) ... [2020-10-15 04:44:28,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d689222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:44:28, skipping insertion in model container [2020-10-15 04:44:28,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:44:27" (2/3) ... [2020-10-15 04:44:28,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d689222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:44:28, skipping insertion in model container [2020-10-15 04:44:28,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:44:28" (3/3) ... [2020-10-15 04:44:28,446 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-10-15 04:44:28,457 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 04:44:28,470 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 04:44:28,485 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 04:44:28,511 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 04:44:28,511 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 04:44:28,511 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 04:44:28,512 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 04:44:28,512 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 04:44:28,512 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 04:44:28,512 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 04:44:28,512 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 04:44:28,534 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states. [2020-10-15 04:44:28,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-15 04:44:28,543 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:28,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:28,544 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:28,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:28,551 INFO L82 PathProgramCache]: Analyzing trace with hash 173387410, now seen corresponding path program 1 times [2020-10-15 04:44:28,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:28,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1805018788] [2020-10-15 04:44:28,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:28,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:29,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:29,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:29,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:29,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 04:44:29,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:29,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-15 04:44:29,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:29,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:29,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:29,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-15 04:44:29,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 04:44:29,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 04:44:29,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:29,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:29,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:29,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:29,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:29,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:29,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:29,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:29,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:29,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:29,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:29,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:44:29,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1805018788] [2020-10-15 04:44:29,336 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:29,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:29,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856408186] [2020-10-15 04:44:29,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:29,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:29,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:29,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:29,359 INFO L87 Difference]: Start difference. First operand 136 states. Second operand 3 states. [2020-10-15 04:44:29,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:29,484 INFO L93 Difference]: Finished difference Result 377 states and 634 transitions. [2020-10-15 04:44:29,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:29,487 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-10-15 04:44:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:29,501 INFO L225 Difference]: With dead ends: 377 [2020-10-15 04:44:29,502 INFO L226 Difference]: Without dead ends: 220 [2020-10-15 04:44:29,506 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 [2020-10-15 04:44:29,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-15 04:44:29,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-10-15 04:44:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-10-15 04:44:29,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 326 transitions. [2020-10-15 04:44:29,570 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 326 transitions. Word has length 29 [2020-10-15 04:44:29,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:29,571 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 326 transitions. [2020-10-15 04:44:29,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:29,571 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 326 transitions. [2020-10-15 04:44:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-15 04:44:29,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:29,574 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:29,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 04:44:29,575 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:29,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:29,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1098416379, now seen corresponding path program 1 times [2020-10-15 04:44:29,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:29,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107177481] [2020-10-15 04:44:29,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:29,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:29,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:29,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:29,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:29,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:30,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-15 04:44:30,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 04:44:30,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-10-15 04:44:30,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:30,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:30,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:30,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-15 04:44:30,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 04:44:30,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 04:44:30,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:30,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:30,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:30,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:30,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:30,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:30,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:30,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:30,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 04:44:30,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107177481] [2020-10-15 04:44:30,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:30,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:30,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858384351] [2020-10-15 04:44:30,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:30,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:30,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:30,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:30,182 INFO L87 Difference]: Start difference. First operand 220 states and 326 transitions. Second operand 3 states. [2020-10-15 04:44:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:30,270 INFO L93 Difference]: Finished difference Result 428 states and 641 transitions. [2020-10-15 04:44:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:30,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-10-15 04:44:30,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:30,280 INFO L225 Difference]: With dead ends: 428 [2020-10-15 04:44:30,281 INFO L226 Difference]: Without dead ends: 323 [2020-10-15 04:44:30,284 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 [2020-10-15 04:44:30,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-10-15 04:44:30,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2020-10-15 04:44:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-10-15 04:44:30,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 479 transitions. [2020-10-15 04:44:30,314 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 479 transitions. Word has length 43 [2020-10-15 04:44:30,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:30,314 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 479 transitions. [2020-10-15 04:44:30,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:30,314 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 479 transitions. [2020-10-15 04:44:30,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-10-15 04:44:30,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:30,318 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:30,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 04:44:30,319 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:30,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:30,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1578262845, now seen corresponding path program 1 times [2020-10-15 04:44:30,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:30,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72031974] [2020-10-15 04:44:30,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:30,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:30,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-15 04:44:30,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 04:44:30,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-15 04:44:30,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:30,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:30,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:30,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-15 04:44:30,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-15 04:44:30,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:30,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:30,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:30,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:30,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:30,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:30,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:30,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:30,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:30,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:30,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:30,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:30,679 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-15 04:44:30,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72031974] [2020-10-15 04:44:30,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:30,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:30,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392237919] [2020-10-15 04:44:30,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:30,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:30,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:30,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:30,682 INFO L87 Difference]: Start difference. First operand 323 states and 479 transitions. Second operand 3 states. [2020-10-15 04:44:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:30,752 INFO L93 Difference]: Finished difference Result 634 states and 947 transitions. [2020-10-15 04:44:30,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:30,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-10-15 04:44:30,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:30,757 INFO L225 Difference]: With dead ends: 634 [2020-10-15 04:44:30,757 INFO L226 Difference]: Without dead ends: 426 [2020-10-15 04:44:30,760 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 [2020-10-15 04:44:30,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-10-15 04:44:30,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2020-10-15 04:44:30,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-10-15 04:44:30,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 633 transitions. [2020-10-15 04:44:30,787 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 633 transitions. Word has length 60 [2020-10-15 04:44:30,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:30,788 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 633 transitions. [2020-10-15 04:44:30,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:30,788 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 633 transitions. [2020-10-15 04:44:30,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 04:44:30,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:30,794 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:30,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 04:44:30,794 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:30,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:30,794 INFO L82 PathProgramCache]: Analyzing trace with hash -377444813, now seen corresponding path program 1 times [2020-10-15 04:44:30,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:30,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472548059] [2020-10-15 04:44:30,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:30,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:30,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:31,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:31,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:31,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:31,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:31,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-15 04:44:31,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:44:31,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 925 [2020-10-15 04:44:31,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:31,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:31,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-15 04:44:31,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-15 04:44:31,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:31,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:31,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:31,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:31,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:31,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:31,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:31,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:31,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:31,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:31,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:31,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:31,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 04:44:31,804 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-10-15 04:44:31,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472548059] [2020-10-15 04:44:31,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:31,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:31,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789915445] [2020-10-15 04:44:31,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:31,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:31,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:31,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:31,808 INFO L87 Difference]: Start difference. First operand 426 states and 633 transitions. Second operand 3 states. [2020-10-15 04:44:32,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:32,109 INFO L93 Difference]: Finished difference Result 1060 states and 1623 transitions. [2020-10-15 04:44:32,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:32,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-10-15 04:44:32,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:32,118 INFO L225 Difference]: With dead ends: 1060 [2020-10-15 04:44:32,118 INFO L226 Difference]: Without dead ends: 646 [2020-10-15 04:44:32,121 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 [2020-10-15 04:44:32,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2020-10-15 04:44:32,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 594. [2020-10-15 04:44:32,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-10-15 04:44:32,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 857 transitions. [2020-10-15 04:44:32,154 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 857 transitions. Word has length 79 [2020-10-15 04:44:32,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:32,156 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 857 transitions. [2020-10-15 04:44:32,156 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:32,156 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 857 transitions. [2020-10-15 04:44:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-15 04:44:32,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:32,164 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-10-15 04:44:32,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 04:44:32,164 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:32,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:32,165 INFO L82 PathProgramCache]: Analyzing trace with hash -452793081, now seen corresponding path program 1 times [2020-10-15 04:44:32,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:32,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [267860403] [2020-10-15 04:44:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:32,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:32,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:32,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:32,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:32,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:34,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:34,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-15 04:44:34,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-15 04:44:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1892 [2020-10-15 04:44:34,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:34,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-15 04:44:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-15 04:44:34,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:34,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:34,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:34,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:34,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:34,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:34,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:34,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:34,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:34,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:34,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-15 04:44:34,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [267860403] [2020-10-15 04:44:34,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:34,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:34,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222251574] [2020-10-15 04:44:34,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:34,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:34,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:34,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:34,205 INFO L87 Difference]: Start difference. First operand 594 states and 857 transitions. Second operand 3 states. [2020-10-15 04:44:34,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:34,278 INFO L93 Difference]: Finished difference Result 1176 states and 1703 transitions. [2020-10-15 04:44:34,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:34,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-10-15 04:44:34,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:34,285 INFO L225 Difference]: With dead ends: 1176 [2020-10-15 04:44:34,285 INFO L226 Difference]: Without dead ends: 739 [2020-10-15 04:44:34,287 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 [2020-10-15 04:44:34,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2020-10-15 04:44:34,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2020-10-15 04:44:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-15 04:44:34,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1068 transitions. [2020-10-15 04:44:34,315 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1068 transitions. Word has length 96 [2020-10-15 04:44:34,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:34,317 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1068 transitions. [2020-10-15 04:44:34,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:34,317 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1068 transitions. [2020-10-15 04:44:34,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 04:44:34,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:34,320 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:34,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 04:44:34,320 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:34,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:34,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1353755413, now seen corresponding path program 1 times [2020-10-15 04:44:34,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:34,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064558441] [2020-10-15 04:44:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:34,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:34,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:34,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:34,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:34,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:34,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 04:44:34,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 04:44:34,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-15 04:44:34,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:34,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:34,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 04:44:34,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-15 04:44:34,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 04:44:34,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:34,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:34,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:34,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:34,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:34,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:34,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:34,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:34,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:34,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:34,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:34,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:34,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-15 04:44:34,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064558441] [2020-10-15 04:44:34,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:34,708 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 04:44:34,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846538071] [2020-10-15 04:44:34,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 04:44:34,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:34,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 04:44:34,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 04:44:34,710 INFO L87 Difference]: Start difference. First operand 739 states and 1068 transitions. Second operand 3 states. [2020-10-15 04:44:34,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:34,962 INFO L93 Difference]: Finished difference Result 1716 states and 2560 transitions. [2020-10-15 04:44:34,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 04:44:34,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2020-10-15 04:44:34,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:34,969 INFO L225 Difference]: With dead ends: 1716 [2020-10-15 04:44:34,969 INFO L226 Difference]: Without dead ends: 984 [2020-10-15 04:44:34,971 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 [2020-10-15 04:44:34,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-10-15 04:44:34,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 939. [2020-10-15 04:44:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2020-10-15 04:44:34,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1313 transitions. [2020-10-15 04:44:34,999 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1313 transitions. Word has length 99 [2020-10-15 04:44:34,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:35,000 INFO L479 AbstractCegarLoop]: Abstraction has 939 states and 1313 transitions. [2020-10-15 04:44:35,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 04:44:35,000 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1313 transitions. [2020-10-15 04:44:35,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-15 04:44:35,002 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:35,002 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:35,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 04:44:35,003 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:35,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:35,003 INFO L82 PathProgramCache]: Analyzing trace with hash -674483159, now seen corresponding path program 1 times [2020-10-15 04:44:35,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:35,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350817941] [2020-10-15 04:44:35,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:35,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:35,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:35,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:35,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-15 04:44:35,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 04:44:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-15 04:44:35,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:35,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 04:44:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-15 04:44:35,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 04:44:35,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:35,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 04:44:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 04:44:35,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 04:44:35,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 04:44:35,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 04:44:35,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 04:44:35,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 04:44:35,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 04:44:35,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 04:44:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 04:44:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 04:44:35,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 04:44:35,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 04:44:35,242 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-15 04:44:35,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350817941] [2020-10-15 04:44:35,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 04:44:35,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 04:44:35,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123506762] [2020-10-15 04:44:35,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 04:44:35,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 04:44:35,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 04:44:35,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 04:44:35,246 INFO L87 Difference]: Start difference. First operand 939 states and 1313 transitions. Second operand 5 states. [2020-10-15 04:44:35,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 04:44:35,529 INFO L93 Difference]: Finished difference Result 1945 states and 2730 transitions. [2020-10-15 04:44:35,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 04:44:35,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-10-15 04:44:35,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 04:44:35,535 INFO L225 Difference]: With dead ends: 1945 [2020-10-15 04:44:35,536 INFO L226 Difference]: Without dead ends: 990 [2020-10-15 04:44:35,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-15 04:44:35,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2020-10-15 04:44:35,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 945. [2020-10-15 04:44:35,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2020-10-15 04:44:35,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1321 transitions. [2020-10-15 04:44:35,571 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1321 transitions. Word has length 99 [2020-10-15 04:44:35,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 04:44:35,571 INFO L479 AbstractCegarLoop]: Abstraction has 945 states and 1321 transitions. [2020-10-15 04:44:35,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 04:44:35,571 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1321 transitions. [2020-10-15 04:44:35,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-15 04:44:35,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 04:44:35,575 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 04:44:35,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 04:44:35,575 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 04:44:35,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 04:44:35,575 INFO L82 PathProgramCache]: Analyzing trace with hash 494924287, now seen corresponding path program 1 times [2020-10-15 04:44:35,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 04:44:35,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336714715] [2020-10-15 04:44:35,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 04:44:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 04:44:35,615 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 04:44:35,615 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 04:44:35,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 04:44:35,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:44:35 BoogieIcfgContainer [2020-10-15 04:44:35,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 04:44:35,682 INFO L168 Benchmark]: Toolchain (without parser) took 8660.49 ms. Allocated memory was 147.3 MB in the beginning and 353.4 MB in the end (delta: 206.0 MB). Free memory was 103.0 MB in the beginning and 153.8 MB in the end (delta: -50.8 MB). Peak memory consumption was 155.3 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:35,687 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-15 04:44:35,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.54 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 102.6 MB in the beginning and 178.2 MB in the end (delta: -75.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:35,689 INFO L168 Benchmark]: Boogie Preprocessor took 54.33 ms. Allocated memory is still 203.4 MB. Free memory was 178.2 MB in the beginning and 176.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:35,690 INFO L168 Benchmark]: RCFGBuilder took 804.84 ms. Allocated memory is still 203.4 MB. Free memory was 176.2 MB in the beginning and 128.2 MB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:35,693 INFO L168 Benchmark]: TraceAbstraction took 7243.79 ms. Allocated memory was 203.4 MB in the beginning and 353.4 MB in the end (delta: 149.9 MB). Free memory was 128.2 MB in the beginning and 153.8 MB in the end (delta: -25.6 MB). Peak memory consumption was 124.4 MB. Max. memory is 7.1 GB. [2020-10-15 04:44:35,708 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 549.54 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 102.6 MB in the beginning and 178.2 MB in the end (delta: -75.6 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.33 ms. Allocated memory is still 203.4 MB. Free memory was 178.2 MB in the beginning and 176.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 804.84 ms. Allocated memory is still 203.4 MB. Free memory was 176.2 MB in the beginning and 128.2 MB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7243.79 ms. Allocated memory was 203.4 MB in the beginning and 353.4 MB in the end (delta: 149.9 MB). Free memory was 128.2 MB in the beginning and 153.8 MB in the end (delta: -25.6 MB). Peak memory consumption was 124.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [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 = __VERIFIER_nondet_int() ; [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 = __VERIFIER_nondet_int() ; [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 = __VERIFIER_nondet_int() ; [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] unsigned 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 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 + 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version + 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 136 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.1s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1233 SDtfs, 951 SDslu, 1033 SDs, 0 SdLazy, 466 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=945occurred 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, 142 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 617 NumberOfCodeBlocks, 617 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 498 ConstructedInterpolants, 0 QuantifiedInterpolants, 61790 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 433/433 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...