/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:33:07,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:33:07,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:33:07,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:33:07,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:33:07,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:33:07,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:33:07,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:33:07,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:33:07,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:33:07,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:33:07,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:33:07,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:33:07,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:33:07,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:33:07,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:33:07,806 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:33:07,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:33:07,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:33:07,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:33:07,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:33:07,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:33:07,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:33:07,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:33:07,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 16:33:07,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 16:33:07,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 16:33:07,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 16:33:07,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 16:33:07,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 16:33:07,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 16:33:07,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 16:33:07,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 16:33:07,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 16:33:07,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 16:33:07,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 16:33:07,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 16:33:07,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 16:33:07,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:33:07,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:33:07,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:33:07,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:33:07,840 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:33:07,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:33:07,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:33:07,842 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:33:07,842 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:33:07,842 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:33:07,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:33:07,843 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:33:07,843 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:33:07,843 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:33:07,843 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:33:07,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:33:07,844 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:33:07,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:33:07,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:33:07,844 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:33:07,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:33:07,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:33:07,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:33:07,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:33:07,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:33:07,846 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:33:07,847 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:33:08,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:33:08,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:33:08,309 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:33:08,311 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:33:08,312 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:33:08,314 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-04 16:33:08,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba1d7d3d7/7b99a1e52b584fe2ad4f14ea6b129efd/FLAG66d8abcdb [2020-09-04 16:33:09,054 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:33:09,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_3.cil-2.c [2020-09-04 16:33:09,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba1d7d3d7/7b99a1e52b584fe2ad4f14ea6b129efd/FLAG66d8abcdb [2020-09-04 16:33:09,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ba1d7d3d7/7b99a1e52b584fe2ad4f14ea6b129efd [2020-09-04 16:33:09,308 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:33:09,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:33:09,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:33:09,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:33:09,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:33:09,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b01e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09, skipping insertion in model container [2020-09-04 16:33:09,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:33:09,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:33:09,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:33:09,690 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:33:09,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:33:09,865 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:33:09,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09 WrapperNode [2020-09-04 16:33:09,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:33:09,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:33:09,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:33:09,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:33:09,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (1/1) ... [2020-09-04 16:33:09,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:33:09,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:33:09,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:33:09,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:33:09,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (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 [2020-09-04 16:33:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:33:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:33:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-04 16:33:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:33:10,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:33:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-04 16:33:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:33:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-04 16:33:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-04 16:33:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-04 16:33:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:33:10,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:33:10,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:33:10,207 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-04 16:33:10,900 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-04 16:33:10,901 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-04 16:33:10,935 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:33:10,935 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 16:33:10,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:33:10 BoogieIcfgContainer [2020-09-04 16:33:10,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:33:10,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:33:10,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:33:10,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:33:10,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:33:09" (1/3) ... [2020-09-04 16:33:10,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64daab9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:33:10, skipping insertion in model container [2020-09-04 16:33:10,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:33:09" (2/3) ... [2020-09-04 16:33:10,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64daab9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:33:10, skipping insertion in model container [2020-09-04 16:33:10,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:33:10" (3/3) ... [2020-09-04 16:33:10,955 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-2.c [2020-09-04 16:33:10,967 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:33:10,979 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:33:11,001 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:33:11,030 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:33:11,030 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:33:11,030 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:33:11,031 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:33:11,031 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:33:11,031 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:33:11,031 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:33:11,031 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:33:11,056 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states. [2020-09-04 16:33:11,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-04 16:33:11,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:11,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:11,087 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:11,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:11,094 INFO L82 PathProgramCache]: Analyzing trace with hash 44117518, now seen corresponding path program 1 times [2020-09-04 16:33:11,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:11,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918330470] [2020-09-04 16:33:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:11,179 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:11,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:11,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:11,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918330470] [2020-09-04 16:33:11,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:11,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:33:11,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135807207] [2020-09-04 16:33:11,799 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:33:11,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:11,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:33:11,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:33:11,822 INFO L87 Difference]: Start difference. First operand 414 states. Second operand 6 states. [2020-09-04 16:33:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:12,318 INFO L93 Difference]: Finished difference Result 733 states and 948 transitions. [2020-09-04 16:33:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:12,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2020-09-04 16:33:12,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:12,343 INFO L225 Difference]: With dead ends: 733 [2020-09-04 16:33:12,344 INFO L226 Difference]: Without dead ends: 399 [2020-09-04 16:33:12,352 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:33:12,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-09-04 16:33:12,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 378. [2020-09-04 16:33:12,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2020-09-04 16:33:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 437 transitions. [2020-09-04 16:33:12,495 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 437 transitions. Word has length 181 [2020-09-04 16:33:12,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:12,499 INFO L479 AbstractCegarLoop]: Abstraction has 378 states and 437 transitions. [2020-09-04 16:33:12,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:33:12,500 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 437 transitions. [2020-09-04 16:33:12,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-04 16:33:12,519 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:12,520 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:12,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:33:12,521 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:12,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:12,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1543076850, now seen corresponding path program 1 times [2020-09-04 16:33:12,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:12,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1539299127] [2020-09-04 16:33:12,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:12,609 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:12,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:12,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:12,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:12,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1539299127] [2020-09-04 16:33:12,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:12,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:33:12,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748703902] [2020-09-04 16:33:12,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:33:12,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:12,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:33:12,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:33:12,898 INFO L87 Difference]: Start difference. First operand 378 states and 437 transitions. Second operand 6 states. [2020-09-04 16:33:13,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:13,334 INFO L93 Difference]: Finished difference Result 654 states and 804 transitions. [2020-09-04 16:33:13,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:13,336 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 203 [2020-09-04 16:33:13,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:13,345 INFO L225 Difference]: With dead ends: 654 [2020-09-04 16:33:13,346 INFO L226 Difference]: Without dead ends: 442 [2020-09-04 16:33:13,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:33:13,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-04 16:33:13,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 391. [2020-09-04 16:33:13,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-09-04 16:33:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 455 transitions. [2020-09-04 16:33:13,449 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 455 transitions. Word has length 203 [2020-09-04 16:33:13,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:13,451 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 455 transitions. [2020-09-04 16:33:13,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:33:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 455 transitions. [2020-09-04 16:33:13,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-04 16:33:13,455 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:13,456 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:13,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:33:13,457 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:13,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:13,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1125063182, now seen corresponding path program 1 times [2020-09-04 16:33:13,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:13,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821783848] [2020-09-04 16:33:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:13,476 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:13,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:13,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821783848] [2020-09-04 16:33:13,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:13,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:13,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312283424] [2020-09-04 16:33:13,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:13,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:13,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:13,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:13,665 INFO L87 Difference]: Start difference. First operand 391 states and 455 transitions. Second operand 3 states. [2020-09-04 16:33:13,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:13,884 INFO L93 Difference]: Finished difference Result 644 states and 778 transitions. [2020-09-04 16:33:13,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:13,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 207 [2020-09-04 16:33:13,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:13,893 INFO L225 Difference]: With dead ends: 644 [2020-09-04 16:33:13,894 INFO L226 Difference]: Without dead ends: 419 [2020-09-04 16:33:13,895 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 [2020-09-04 16:33:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-09-04 16:33:13,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 409. [2020-09-04 16:33:13,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-09-04 16:33:13,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 478 transitions. [2020-09-04 16:33:13,963 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 478 transitions. Word has length 207 [2020-09-04 16:33:13,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:13,965 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 478 transitions. [2020-09-04 16:33:13,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 478 transitions. [2020-09-04 16:33:13,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-04 16:33:13,969 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:13,970 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:13,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:33:13,970 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:13,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:13,971 INFO L82 PathProgramCache]: Analyzing trace with hash -144330786, now seen corresponding path program 1 times [2020-09-04 16:33:13,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:13,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1104470133] [2020-09-04 16:33:13,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:13,987 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:14,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:14,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:14,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1104470133] [2020-09-04 16:33:14,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:14,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:14,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783487832] [2020-09-04 16:33:14,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:14,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:14,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:14,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:14,221 INFO L87 Difference]: Start difference. First operand 409 states and 478 transitions. Second operand 3 states. [2020-09-04 16:33:14,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:14,351 INFO L93 Difference]: Finished difference Result 888 states and 1088 transitions. [2020-09-04 16:33:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:14,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-09-04 16:33:14,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:14,358 INFO L225 Difference]: With dead ends: 888 [2020-09-04 16:33:14,358 INFO L226 Difference]: Without dead ends: 645 [2020-09-04 16:33:14,360 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 [2020-09-04 16:33:14,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2020-09-04 16:33:14,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2020-09-04 16:33:14,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-09-04 16:33:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 775 transitions. [2020-09-04 16:33:14,439 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 775 transitions. Word has length 214 [2020-09-04 16:33:14,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:14,439 INFO L479 AbstractCegarLoop]: Abstraction has 645 states and 775 transitions. [2020-09-04 16:33:14,440 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:14,440 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 775 transitions. [2020-09-04 16:33:14,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-09-04 16:33:14,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:14,445 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:14,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:33:14,445 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:14,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:14,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1130092021, now seen corresponding path program 1 times [2020-09-04 16:33:14,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:14,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1807736493] [2020-09-04 16:33:14,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:14,458 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:14,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:14,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:14,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1807736493] [2020-09-04 16:33:14,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:14,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:14,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48042639] [2020-09-04 16:33:14,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:14,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:14,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:14,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:14,635 INFO L87 Difference]: Start difference. First operand 645 states and 775 transitions. Second operand 3 states. [2020-09-04 16:33:14,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:14,867 INFO L93 Difference]: Finished difference Result 1188 states and 1470 transitions. [2020-09-04 16:33:14,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:14,868 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-09-04 16:33:14,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:14,873 INFO L225 Difference]: With dead ends: 1188 [2020-09-04 16:33:14,873 INFO L226 Difference]: Without dead ends: 709 [2020-09-04 16:33:14,875 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 [2020-09-04 16:33:14,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2020-09-04 16:33:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 685. [2020-09-04 16:33:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-09-04 16:33:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 825 transitions. [2020-09-04 16:33:14,947 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 825 transitions. Word has length 229 [2020-09-04 16:33:14,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:14,948 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 825 transitions. [2020-09-04 16:33:14,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:14,948 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 825 transitions. [2020-09-04 16:33:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-09-04 16:33:14,952 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:14,952 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:14,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 16:33:14,953 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:14,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:14,953 INFO L82 PathProgramCache]: Analyzing trace with hash -2121264617, now seen corresponding path program 1 times [2020-09-04 16:33:14,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:14,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594662926] [2020-09-04 16:33:14,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:14,964 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:15,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:15,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:15,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594662926] [2020-09-04 16:33:15,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:15,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:15,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76078958] [2020-09-04 16:33:15,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:15,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:15,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:15,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:15,091 INFO L87 Difference]: Start difference. First operand 685 states and 825 transitions. Second operand 3 states. [2020-09-04 16:33:15,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:15,236 INFO L93 Difference]: Finished difference Result 1653 states and 2033 transitions. [2020-09-04 16:33:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:15,237 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-09-04 16:33:15,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:15,244 INFO L225 Difference]: With dead ends: 1653 [2020-09-04 16:33:15,244 INFO L226 Difference]: Without dead ends: 1134 [2020-09-04 16:33:15,246 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 [2020-09-04 16:33:15,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2020-09-04 16:33:15,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1132. [2020-09-04 16:33:15,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1132 states. [2020-09-04 16:33:15,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1369 transitions. [2020-09-04 16:33:15,352 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1369 transitions. Word has length 236 [2020-09-04 16:33:15,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:15,353 INFO L479 AbstractCegarLoop]: Abstraction has 1132 states and 1369 transitions. [2020-09-04 16:33:15,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1369 transitions. [2020-09-04 16:33:15,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-09-04 16:33:15,358 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:15,358 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:15,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 16:33:15,359 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:15,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:15,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1692173170, now seen corresponding path program 1 times [2020-09-04 16:33:15,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:15,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906734045] [2020-09-04 16:33:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:15,369 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:15,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:15,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906734045] [2020-09-04 16:33:15,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:15,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:15,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614130902] [2020-09-04 16:33:15,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:15,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:15,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:15,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:15,480 INFO L87 Difference]: Start difference. First operand 1132 states and 1369 transitions. Second operand 3 states. [2020-09-04 16:33:15,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:15,620 INFO L93 Difference]: Finished difference Result 2116 states and 2590 transitions. [2020-09-04 16:33:15,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:15,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2020-09-04 16:33:15,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:15,627 INFO L225 Difference]: With dead ends: 2116 [2020-09-04 16:33:15,628 INFO L226 Difference]: Without dead ends: 1150 [2020-09-04 16:33:15,631 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 [2020-09-04 16:33:15,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2020-09-04 16:33:15,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1140. [2020-09-04 16:33:15,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2020-09-04 16:33:15,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1373 transitions. [2020-09-04 16:33:15,783 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1373 transitions. Word has length 237 [2020-09-04 16:33:15,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:15,784 INFO L479 AbstractCegarLoop]: Abstraction has 1140 states and 1373 transitions. [2020-09-04 16:33:15,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:15,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1373 transitions. [2020-09-04 16:33:15,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-04 16:33:15,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:15,793 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:15,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 16:33:15,793 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:15,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:15,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1154899678, now seen corresponding path program 1 times [2020-09-04 16:33:15,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:15,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677259440] [2020-09-04 16:33:15,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:15,804 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:15,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:15,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677259440] [2020-09-04 16:33:15,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:15,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:15,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456969598] [2020-09-04 16:33:15,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:15,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:15,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:15,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:15,934 INFO L87 Difference]: Start difference. First operand 1140 states and 1373 transitions. Second operand 3 states. [2020-09-04 16:33:16,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:16,172 INFO L93 Difference]: Finished difference Result 3074 states and 3757 transitions. [2020-09-04 16:33:16,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:16,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-09-04 16:33:16,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:16,185 INFO L225 Difference]: With dead ends: 3074 [2020-09-04 16:33:16,185 INFO L226 Difference]: Without dead ends: 2100 [2020-09-04 16:33:16,190 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 [2020-09-04 16:33:16,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2020-09-04 16:33:16,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2098. [2020-09-04 16:33:16,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2098 states. [2020-09-04 16:33:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 2541 transitions. [2020-09-04 16:33:16,434 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 2541 transitions. Word has length 239 [2020-09-04 16:33:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:16,435 INFO L479 AbstractCegarLoop]: Abstraction has 2098 states and 2541 transitions. [2020-09-04 16:33:16,435 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:16,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 2541 transitions. [2020-09-04 16:33:16,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-09-04 16:33:16,441 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:16,441 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:16,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 16:33:16,441 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:16,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:16,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1231609828, now seen corresponding path program 1 times [2020-09-04 16:33:16,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:16,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898881609] [2020-09-04 16:33:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:16,451 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:16,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:16,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898881609] [2020-09-04 16:33:16,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:16,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:16,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275771083] [2020-09-04 16:33:16,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:16,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:16,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:16,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:16,562 INFO L87 Difference]: Start difference. First operand 2098 states and 2541 transitions. Second operand 3 states. [2020-09-04 16:33:16,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:16,770 INFO L93 Difference]: Finished difference Result 3089 states and 3751 transitions. [2020-09-04 16:33:16,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:16,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2020-09-04 16:33:16,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:16,783 INFO L225 Difference]: With dead ends: 3089 [2020-09-04 16:33:16,783 INFO L226 Difference]: Without dead ends: 2115 [2020-09-04 16:33:16,787 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 [2020-09-04 16:33:16,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2020-09-04 16:33:16,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 2113. [2020-09-04 16:33:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2113 states. [2020-09-04 16:33:16,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2113 states to 2113 states and 2547 transitions. [2020-09-04 16:33:16,997 INFO L78 Accepts]: Start accepts. Automaton has 2113 states and 2547 transitions. Word has length 239 [2020-09-04 16:33:16,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:17,001 INFO L479 AbstractCegarLoop]: Abstraction has 2113 states and 2547 transitions. [2020-09-04 16:33:17,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:17,001 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states and 2547 transitions. [2020-09-04 16:33:17,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-04 16:33:17,007 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:17,007 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:17,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 16:33:17,008 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:17,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:17,009 INFO L82 PathProgramCache]: Analyzing trace with hash -2054606457, now seen corresponding path program 1 times [2020-09-04 16:33:17,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:17,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959494350] [2020-09-04 16:33:17,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:17,020 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:17,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:17,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:17,195 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959494350] [2020-09-04 16:33:17,195 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:17,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:17,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789463611] [2020-09-04 16:33:17,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:17,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:17,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:17,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:17,198 INFO L87 Difference]: Start difference. First operand 2113 states and 2547 transitions. Second operand 3 states. [2020-09-04 16:33:17,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:17,485 INFO L93 Difference]: Finished difference Result 4045 states and 4926 transitions. [2020-09-04 16:33:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:17,485 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-09-04 16:33:17,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:17,501 INFO L225 Difference]: With dead ends: 4045 [2020-09-04 16:33:17,502 INFO L226 Difference]: Without dead ends: 3068 [2020-09-04 16:33:17,505 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 [2020-09-04 16:33:17,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3068 states. [2020-09-04 16:33:17,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3068 to 3068. [2020-09-04 16:33:17,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3068 states. [2020-09-04 16:33:17,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3068 states to 3068 states and 3710 transitions. [2020-09-04 16:33:17,787 INFO L78 Accepts]: Start accepts. Automaton has 3068 states and 3710 transitions. Word has length 240 [2020-09-04 16:33:17,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:17,788 INFO L479 AbstractCegarLoop]: Abstraction has 3068 states and 3710 transitions. [2020-09-04 16:33:17,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:17,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3068 states and 3710 transitions. [2020-09-04 16:33:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-09-04 16:33:17,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:17,796 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:17,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 16:33:17,797 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:17,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1762569168, now seen corresponding path program 1 times [2020-09-04 16:33:17,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:17,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1514422261] [2020-09-04 16:33:17,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:17,806 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:17,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:17,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:17,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1514422261] [2020-09-04 16:33:17,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:17,913 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:17,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489924371] [2020-09-04 16:33:17,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:17,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:17,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:17,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:17,915 INFO L87 Difference]: Start difference. First operand 3068 states and 3710 transitions. Second operand 3 states. [2020-09-04 16:33:18,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:18,539 INFO L93 Difference]: Finished difference Result 6702 states and 8354 transitions. [2020-09-04 16:33:18,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:18,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-09-04 16:33:18,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:18,563 INFO L225 Difference]: With dead ends: 6702 [2020-09-04 16:33:18,563 INFO L226 Difference]: Without dead ends: 3803 [2020-09-04 16:33:18,575 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 [2020-09-04 16:33:18,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3803 states. [2020-09-04 16:33:19,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3803 to 3545. [2020-09-04 16:33:19,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3545 states. [2020-09-04 16:33:19,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 4226 transitions. [2020-09-04 16:33:19,031 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 4226 transitions. Word has length 250 [2020-09-04 16:33:19,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:19,032 INFO L479 AbstractCegarLoop]: Abstraction has 3545 states and 4226 transitions. [2020-09-04 16:33:19,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:19,033 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 4226 transitions. [2020-09-04 16:33:19,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-09-04 16:33:19,041 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:19,042 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:19,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-04 16:33:19,042 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:19,043 INFO L82 PathProgramCache]: Analyzing trace with hash -81032144, now seen corresponding path program 1 times [2020-09-04 16:33:19,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:19,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573367147] [2020-09-04 16:33:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:19,051 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:19,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:19,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573367147] [2020-09-04 16:33:19,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:19,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:19,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304844758] [2020-09-04 16:33:19,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:19,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:19,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:19,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:19,160 INFO L87 Difference]: Start difference. First operand 3545 states and 4226 transitions. Second operand 3 states. [2020-09-04 16:33:19,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:19,564 INFO L93 Difference]: Finished difference Result 7246 states and 8728 transitions. [2020-09-04 16:33:19,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:19,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-09-04 16:33:19,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:19,582 INFO L225 Difference]: With dead ends: 7246 [2020-09-04 16:33:19,583 INFO L226 Difference]: Without dead ends: 3882 [2020-09-04 16:33:19,656 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 [2020-09-04 16:33:19,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3882 states. [2020-09-04 16:33:19,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3882 to 3758. [2020-09-04 16:33:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3758 states. [2020-09-04 16:33:19,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 4454 transitions. [2020-09-04 16:33:19,920 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 4454 transitions. Word has length 250 [2020-09-04 16:33:19,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:19,921 INFO L479 AbstractCegarLoop]: Abstraction has 3758 states and 4454 transitions. [2020-09-04 16:33:19,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:19,922 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 4454 transitions. [2020-09-04 16:33:19,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-09-04 16:33:19,931 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:19,932 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:19,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-04 16:33:19,932 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:19,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:19,933 INFO L82 PathProgramCache]: Analyzing trace with hash 713835900, now seen corresponding path program 1 times [2020-09-04 16:33:19,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:19,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215225103] [2020-09-04 16:33:19,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:19,939 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:20,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:20,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:20,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215225103] [2020-09-04 16:33:20,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:20,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:33:20,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288514951] [2020-09-04 16:33:20,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:33:20,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:20,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:33:20,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:33:20,067 INFO L87 Difference]: Start difference. First operand 3758 states and 4454 transitions. Second operand 5 states. [2020-09-04 16:33:20,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:20,584 INFO L93 Difference]: Finished difference Result 6233 states and 7321 transitions. [2020-09-04 16:33:20,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:20,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 265 [2020-09-04 16:33:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:20,606 INFO L225 Difference]: With dead ends: 6233 [2020-09-04 16:33:20,606 INFO L226 Difference]: Without dead ends: 4430 [2020-09-04 16:33:20,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:33:20,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4430 states. [2020-09-04 16:33:21,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4430 to 3860. [2020-09-04 16:33:21,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3860 states. [2020-09-04 16:33:21,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3860 states to 3860 states and 4565 transitions. [2020-09-04 16:33:21,042 INFO L78 Accepts]: Start accepts. Automaton has 3860 states and 4565 transitions. Word has length 265 [2020-09-04 16:33:21,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:21,043 INFO L479 AbstractCegarLoop]: Abstraction has 3860 states and 4565 transitions. [2020-09-04 16:33:21,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:33:21,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states and 4565 transitions. [2020-09-04 16:33:21,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-04 16:33:21,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:21,054 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:21,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-04 16:33:21,055 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:21,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:21,055 INFO L82 PathProgramCache]: Analyzing trace with hash -700825412, now seen corresponding path program 2 times [2020-09-04 16:33:21,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:21,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1112981483] [2020-09-04 16:33:21,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:21,071 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:21,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:21,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:21,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1112981483] [2020-09-04 16:33:21,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:21,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:33:21,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785173699] [2020-09-04 16:33:21,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:33:21,215 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:21,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:33:21,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:33:21,216 INFO L87 Difference]: Start difference. First operand 3860 states and 4565 transitions. Second operand 5 states. [2020-09-04 16:33:21,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:21,884 INFO L93 Difference]: Finished difference Result 6567 states and 7700 transitions. [2020-09-04 16:33:21,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:21,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-09-04 16:33:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:21,919 INFO L225 Difference]: With dead ends: 6567 [2020-09-04 16:33:21,919 INFO L226 Difference]: Without dead ends: 4662 [2020-09-04 16:33:21,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:33:21,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2020-09-04 16:33:22,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 3897. [2020-09-04 16:33:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3897 states. [2020-09-04 16:33:22,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 4611 transitions. [2020-09-04 16:33:22,207 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 4611 transitions. Word has length 268 [2020-09-04 16:33:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:22,208 INFO L479 AbstractCegarLoop]: Abstraction has 3897 states and 4611 transitions. [2020-09-04 16:33:22,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:33:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 4611 transitions. [2020-09-04 16:33:22,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-04 16:33:22,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:22,217 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:22,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-04 16:33:22,218 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:22,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:22,218 INFO L82 PathProgramCache]: Analyzing trace with hash 19964066, now seen corresponding path program 1 times [2020-09-04 16:33:22,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:22,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908424413] [2020-09-04 16:33:22,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:22,228 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:22,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:22,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:22,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908424413] [2020-09-04 16:33:22,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:22,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:33:22,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812574818] [2020-09-04 16:33:22,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:33:22,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:22,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:33:22,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:33:22,367 INFO L87 Difference]: Start difference. First operand 3897 states and 4611 transitions. Second operand 5 states. [2020-09-04 16:33:22,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:22,967 INFO L93 Difference]: Finished difference Result 6406 states and 7521 transitions. [2020-09-04 16:33:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:22,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 269 [2020-09-04 16:33:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:22,977 INFO L225 Difference]: With dead ends: 6406 [2020-09-04 16:33:22,977 INFO L226 Difference]: Without dead ends: 4464 [2020-09-04 16:33:22,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:33:22,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4464 states. [2020-09-04 16:33:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4464 to 3803. [2020-09-04 16:33:23,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3803 states. [2020-09-04 16:33:23,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3803 states to 3803 states and 4502 transitions. [2020-09-04 16:33:23,337 INFO L78 Accepts]: Start accepts. Automaton has 3803 states and 4502 transitions. Word has length 269 [2020-09-04 16:33:23,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:23,338 INFO L479 AbstractCegarLoop]: Abstraction has 3803 states and 4502 transitions. [2020-09-04 16:33:23,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:33:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3803 states and 4502 transitions. [2020-09-04 16:33:23,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-04 16:33:23,346 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:23,346 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:23,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-04 16:33:23,347 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:23,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:23,347 INFO L82 PathProgramCache]: Analyzing trace with hash -76751101, now seen corresponding path program 1 times [2020-09-04 16:33:23,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:23,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344773404] [2020-09-04 16:33:23,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:23,354 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:23,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:23,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344773404] [2020-09-04 16:33:23,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:23,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:23,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803371198] [2020-09-04 16:33:23,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:23,459 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:23,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:23,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:23,459 INFO L87 Difference]: Start difference. First operand 3803 states and 4502 transitions. Second operand 3 states. [2020-09-04 16:33:23,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:23,875 INFO L93 Difference]: Finished difference Result 7744 states and 9274 transitions. [2020-09-04 16:33:23,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:23,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 269 [2020-09-04 16:33:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:23,885 INFO L225 Difference]: With dead ends: 7744 [2020-09-04 16:33:23,885 INFO L226 Difference]: Without dead ends: 4122 [2020-09-04 16:33:23,892 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 [2020-09-04 16:33:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2020-09-04 16:33:24,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 4040. [2020-09-04 16:33:24,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4040 states. [2020-09-04 16:33:24,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 4754 transitions. [2020-09-04 16:33:24,220 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 4754 transitions. Word has length 269 [2020-09-04 16:33:24,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:24,221 INFO L479 AbstractCegarLoop]: Abstraction has 4040 states and 4754 transitions. [2020-09-04 16:33:24,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:24,221 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 4754 transitions. [2020-09-04 16:33:24,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-04 16:33:24,229 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:24,229 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:24,229 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-04 16:33:24,229 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:24,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:24,230 INFO L82 PathProgramCache]: Analyzing trace with hash 360016174, now seen corresponding path program 1 times [2020-09-04 16:33:24,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:24,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809462340] [2020-09-04 16:33:24,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:24,238 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:24,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:24,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809462340] [2020-09-04 16:33:24,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:24,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:33:24,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569732018] [2020-09-04 16:33:24,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:33:24,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:24,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:33:24,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:33:24,367 INFO L87 Difference]: Start difference. First operand 4040 states and 4754 transitions. Second operand 4 states. [2020-09-04 16:33:25,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:25,221 INFO L93 Difference]: Finished difference Result 8465 states and 10020 transitions. [2020-09-04 16:33:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:33:25,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2020-09-04 16:33:25,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:25,235 INFO L225 Difference]: With dead ends: 8465 [2020-09-04 16:33:25,236 INFO L226 Difference]: Without dead ends: 6494 [2020-09-04 16:33:25,242 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 [2020-09-04 16:33:25,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6494 states. [2020-09-04 16:33:25,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6494 to 4070. [2020-09-04 16:33:25,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4070 states. [2020-09-04 16:33:25,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4070 states to 4070 states and 4793 transitions. [2020-09-04 16:33:25,595 INFO L78 Accepts]: Start accepts. Automaton has 4070 states and 4793 transitions. Word has length 271 [2020-09-04 16:33:25,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:25,595 INFO L479 AbstractCegarLoop]: Abstraction has 4070 states and 4793 transitions. [2020-09-04 16:33:25,595 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:33:25,595 INFO L276 IsEmpty]: Start isEmpty. Operand 4070 states and 4793 transitions. [2020-09-04 16:33:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-04 16:33:25,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:25,603 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:25,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-04 16:33:25,603 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:25,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:25,604 INFO L82 PathProgramCache]: Analyzing trace with hash 663575758, now seen corresponding path program 1 times [2020-09-04 16:33:25,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:25,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922935504] [2020-09-04 16:33:25,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:25,612 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:25,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:26,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922935504] [2020-09-04 16:33:26,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:26,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:33:26,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091446444] [2020-09-04 16:33:26,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:33:26,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:26,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:33:26,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:33:26,102 INFO L87 Difference]: Start difference. First operand 4070 states and 4793 transitions. Second operand 4 states. [2020-09-04 16:33:27,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:27,003 INFO L93 Difference]: Finished difference Result 11247 states and 13651 transitions. [2020-09-04 16:33:27,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:33:27,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2020-09-04 16:33:27,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:27,022 INFO L225 Difference]: With dead ends: 11247 [2020-09-04 16:33:27,023 INFO L226 Difference]: Without dead ends: 7358 [2020-09-04 16:33:27,033 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 [2020-09-04 16:33:27,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7358 states. [2020-09-04 16:33:27,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7358 to 4556. [2020-09-04 16:33:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4556 states. [2020-09-04 16:33:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4556 states to 4556 states and 5378 transitions. [2020-09-04 16:33:27,446 INFO L78 Accepts]: Start accepts. Automaton has 4556 states and 5378 transitions. Word has length 271 [2020-09-04 16:33:27,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:27,446 INFO L479 AbstractCegarLoop]: Abstraction has 4556 states and 5378 transitions. [2020-09-04 16:33:27,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:33:27,446 INFO L276 IsEmpty]: Start isEmpty. Operand 4556 states and 5378 transitions. [2020-09-04 16:33:27,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-09-04 16:33:27,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:27,454 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:27,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-04 16:33:27,454 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:27,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:27,454 INFO L82 PathProgramCache]: Analyzing trace with hash 651686925, now seen corresponding path program 1 times [2020-09-04 16:33:27,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:27,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484521195] [2020-09-04 16:33:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:27,461 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:27,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:27,586 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484521195] [2020-09-04 16:33:27,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:27,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:27,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117701972] [2020-09-04 16:33:27,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:27,587 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:27,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:27,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:27,588 INFO L87 Difference]: Start difference. First operand 4556 states and 5378 transitions. Second operand 3 states. [2020-09-04 16:33:28,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:28,145 INFO L93 Difference]: Finished difference Result 9759 states and 11774 transitions. [2020-09-04 16:33:28,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:28,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2020-09-04 16:33:28,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:28,157 INFO L225 Difference]: With dead ends: 9759 [2020-09-04 16:33:28,157 INFO L226 Difference]: Without dead ends: 5372 [2020-09-04 16:33:28,168 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 [2020-09-04 16:33:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5372 states. [2020-09-04 16:33:28,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 5009. [2020-09-04 16:33:28,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5009 states. [2020-09-04 16:33:28,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 5906 transitions. [2020-09-04 16:33:28,697 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 5906 transitions. Word has length 291 [2020-09-04 16:33:28,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:28,698 INFO L479 AbstractCegarLoop]: Abstraction has 5009 states and 5906 transitions. [2020-09-04 16:33:28,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:28,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 5906 transitions. [2020-09-04 16:33:28,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-09-04 16:33:28,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:28,708 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:28,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-04 16:33:28,710 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:28,711 INFO L82 PathProgramCache]: Analyzing trace with hash -2093654891, now seen corresponding path program 1 times [2020-09-04 16:33:28,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:28,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111182908] [2020-09-04 16:33:28,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:28,725 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:28,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:28,887 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111182908] [2020-09-04 16:33:28,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:28,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:28,888 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567586851] [2020-09-04 16:33:28,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:28,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:28,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:28,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:28,890 INFO L87 Difference]: Start difference. First operand 5009 states and 5906 transitions. Second operand 3 states. [2020-09-04 16:33:29,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:29,639 INFO L93 Difference]: Finished difference Result 9837 states and 11644 transitions. [2020-09-04 16:33:29,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:29,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 293 [2020-09-04 16:33:29,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:29,651 INFO L225 Difference]: With dead ends: 9837 [2020-09-04 16:33:29,651 INFO L226 Difference]: Without dead ends: 6611 [2020-09-04 16:33:29,659 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 [2020-09-04 16:33:29,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6611 states. [2020-09-04 16:33:30,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6611 to 6611. [2020-09-04 16:33:30,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6611 states. [2020-09-04 16:33:30,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 7805 transitions. [2020-09-04 16:33:30,093 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 7805 transitions. Word has length 293 [2020-09-04 16:33:30,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:30,093 INFO L479 AbstractCegarLoop]: Abstraction has 6611 states and 7805 transitions. [2020-09-04 16:33:30,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:30,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 7805 transitions. [2020-09-04 16:33:30,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-09-04 16:33:30,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:30,100 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:30,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-04 16:33:30,101 INFO L427 AbstractCegarLoop]: === Iteration 21 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:30,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:30,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1985620780, now seen corresponding path program 1 times [2020-09-04 16:33:30,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:30,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026109396] [2020-09-04 16:33:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:30,108 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:30,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:30,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:30,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:30,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026109396] [2020-09-04 16:33:30,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:30,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:30,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787291917] [2020-09-04 16:33:30,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:30,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:30,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:30,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:30,241 INFO L87 Difference]: Start difference. First operand 6611 states and 7805 transitions. Second operand 3 states. [2020-09-04 16:33:30,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:30,884 INFO L93 Difference]: Finished difference Result 12305 states and 14562 transitions. [2020-09-04 16:33:30,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:30,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2020-09-04 16:33:30,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:30,892 INFO L225 Difference]: With dead ends: 12305 [2020-09-04 16:33:30,892 INFO L226 Difference]: Without dead ends: 7477 [2020-09-04 16:33:30,901 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 [2020-09-04 16:33:30,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7477 states. [2020-09-04 16:33:31,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7477 to 7477. [2020-09-04 16:33:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7477 states. [2020-09-04 16:33:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7477 states to 7477 states and 8822 transitions. [2020-09-04 16:33:31,453 INFO L78 Accepts]: Start accepts. Automaton has 7477 states and 8822 transitions. Word has length 298 [2020-09-04 16:33:31,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:31,453 INFO L479 AbstractCegarLoop]: Abstraction has 7477 states and 8822 transitions. [2020-09-04 16:33:31,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:31,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7477 states and 8822 transitions. [2020-09-04 16:33:31,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2020-09-04 16:33:31,460 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:31,461 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:33:31,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-04 16:33:31,461 INFO L427 AbstractCegarLoop]: === Iteration 22 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:31,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:31,461 INFO L82 PathProgramCache]: Analyzing trace with hash -638739787, now seen corresponding path program 1 times [2020-09-04 16:33:31,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:31,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1450595934] [2020-09-04 16:33:31,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:31,468 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:31,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:33:31,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:33:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:33:31,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:33:31,784 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:33:31,784 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:33:31,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-04 16:33:31,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:33:31 BoogieIcfgContainer [2020-09-04 16:33:31,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:33:31,852 INFO L168 Benchmark]: Toolchain (without parser) took 22534.35 ms. Allocated memory was 136.8 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 100.0 MB in the beginning and 660.9 MB in the end (delta: -560.9 MB). Peak memory consumption was 828.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:31,856 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 16:33:31,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 554.91 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 175.6 MB in the end (delta: -75.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:31,858 INFO L168 Benchmark]: Boogie Preprocessor took 74.07 ms. Allocated memory is still 200.8 MB. Free memory was 175.6 MB in the beginning and 173.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:31,860 INFO L168 Benchmark]: RCFGBuilder took 1002.56 ms. Allocated memory is still 200.8 MB. Free memory was 173.2 MB in the beginning and 104.6 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:31,860 INFO L168 Benchmark]: TraceAbstraction took 20896.65 ms. Allocated memory was 200.8 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 104.6 MB in the beginning and 660.9 MB in the end (delta: -556.3 MB). Peak memory consumption was 769.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:31,864 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 554.91 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 175.6 MB in the end (delta: -75.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.07 ms. Allocated memory is still 200.8 MB. Free memory was 175.6 MB in the beginning and 173.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1002.56 ms. Allocated memory is still 200.8 MB. Free memory was 173.2 MB in the beginning and 104.6 MB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20896.65 ms. Allocated memory was 200.8 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 104.6 MB in the beginning and 660.9 MB in the end (delta: -556.3 MB). Peak memory consumption was 769.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 573]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L578] int s ; [L582] s = 12292 [L583] CALL ssl3_connect(s) [L12] int s__info_callback = __VERIFIER_nondet_int() ; [L13] int s__in_handshake = __VERIFIER_nondet_int() ; [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int() ; [L18] int s__type ; [L19] int s__init_num ; [L20] int s__bbio = __VERIFIER_nondet_int() ; [L21] int s__wbio = __VERIFIER_nondet_int() ; [L22] int s__hit = __VERIFIER_nondet_int() ; [L23] int s__rwstate ; [L24] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L25] int s__debug = __VERIFIER_nondet_int() ; [L26] int s__shutdown ; [L27] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L32] int s__s3__change_cipher_spec ; [L33] int s__s3__flags = __VERIFIER_nondet_int() ; [L34] int s__s3__delay_buf_pop_ret ; [L35] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L40] int s__s3__tmp__next_state___0 ; [L41] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L42] int s__session__cipher ; [L43] int s__session__compress_meth ; [L44] int buf ; [L45] unsigned long tmp ; [L46] unsigned long l ; [L47] int num1 = __VERIFIER_nondet_int() ; [L48] int cb ; [L49] int ret ; [L50] int new_state ; [L51] int state ; [L52] int skip ; [L53] int tmp___0 ; [L54] int tmp___1 = __VERIFIER_nondet_int() ; [L55] int tmp___2 = __VERIFIER_nondet_int() ; [L56] int tmp___3 = __VERIFIER_nondet_int() ; [L57] int tmp___4 = __VERIFIER_nondet_int() ; [L58] int tmp___5 = __VERIFIER_nondet_int() ; [L59] int tmp___6 = __VERIFIER_nondet_int() ; [L60] int tmp___7 = __VERIFIER_nondet_int() ; [L61] int tmp___8 = __VERIFIER_nondet_int() ; [L62] int tmp___9 = __VERIFIER_nondet_int() ; [L63] int blastFlag ; [L64] int __cil_tmp55 ; [L65] void *__cil_tmp56 ; [L66] unsigned long __cil_tmp57 ; [L67] unsigned long __cil_tmp58 = __VERIFIER_nondet_ulong() ; [L68] void *__cil_tmp59 ; [L69] unsigned long __cil_tmp60 ; [L70] unsigned long __cil_tmp61 ; [L71] unsigned long __cil_tmp62 ; [L72] unsigned long __cil_tmp63 ; [L73] unsigned long __cil_tmp64 ; [L74] long __cil_tmp65 = __VERIFIER_nondet_long() ; [L75] long __cil_tmp66 ; [L76] long __cil_tmp67 ; [L77] long __cil_tmp68 ; [L78] long __cil_tmp69 ; [L79] long __cil_tmp70 = __VERIFIER_nondet_long() ; [L80] long __cil_tmp71 ; [L81] long __cil_tmp72 ; [L82] long __cil_tmp73 ; [L83] long __cil_tmp74 ; [L87] s__state = initial_state [L88] blastFlag = 0 [L89] tmp = __VERIFIER_nondet_int() [L90] cb = 0 [L91] ret = -1 [L92] skip = 0 [L93] tmp___0 = 0 [L94] COND TRUE s__info_callback != 0 [L95] cb = s__info_callback [L101] s__in_handshake ++ [L102] COND FALSE !(tmp___1 + 12288) [L108] COND TRUE 1 [L110] state = s__state [L111] COND TRUE s__state == 12292 [L213] s__new_session = 1 [L214] s__state = 4096 [L215] s__ctx__stats__sess_connect_renegotiate ++ [L220] s__server = 0 [L221] COND TRUE cb != 0 [L225] __cil_tmp55 = s__version + 65280 [L226] COND FALSE !(__cil_tmp55 != 768) [L231] s__type = 4096 [L233] __cil_tmp56 = (void *)0 [L234] __cil_tmp57 = (unsigned long )__cil_tmp56 [L235] __cil_tmp58 = (unsigned long )s__init_buf___0 [L236] COND FALSE !(__cil_tmp58 == __cil_tmp57) [L254] COND FALSE !(! tmp___4) [L258] COND FALSE !(! tmp___5) [L262] s__state = 4368 [L263] s__ctx__stats__sess_connect ++ [L264] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND TRUE s__state == 4368 [L268] s__shutdown = 0 [L269] ret = __VERIFIER_nondet_int() [L270] COND TRUE blastFlag == 0 [L271] blastFlag = 1 [L273] COND FALSE !(ret <= 0) [L276] s__state = 4384 [L277] s__init_num = 0 [L279] __cil_tmp62 = (unsigned long )s__wbio [L280] __cil_tmp63 = (unsigned long )s__bbio [L281] COND TRUE __cil_tmp63 != __cil_tmp62 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND TRUE s__state == 4384 [L288] ret = __VERIFIER_nondet_int() [L289] COND TRUE blastFlag == 1 [L290] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L299] COND FALSE !(\read(s__hit)) [L302] s__state = 4400 [L304] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND TRUE s__state == 4400 [L309] __cil_tmp64 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L310] COND FALSE !(__cil_tmp64 + 256UL) [L313] ret = __VERIFIER_nondet_int() [L314] COND TRUE blastFlag == 2 [L315] blastFlag = 3 [L317] COND FALSE !(ret <= 0) [L322] s__state = 4416 [L323] s__init_num = 0 [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND TRUE s__state == 4416 [L327] ret = __VERIFIER_nondet_int() [L328] COND TRUE blastFlag == 3 [L329] blastFlag = 4 [L331] COND FALSE !(ret <= 0) [L334] s__state = 4432 [L335] s__init_num = 0 [L336] COND FALSE !(! tmp___6) [L545] COND FALSE !(! s__s3__tmp__reuse_message) [L562] skip = 0 [L108] COND TRUE 1 [L110] state = s__state [L111] COND FALSE !(s__state == 12292) [L114] COND FALSE !(s__state == 16384) [L117] COND FALSE !(s__state == 4096) [L120] COND FALSE !(s__state == 20480) [L123] COND FALSE !(s__state == 4099) [L126] COND FALSE !(s__state == 4368) [L129] COND FALSE !(s__state == 4369) [L132] COND FALSE !(s__state == 4384) [L135] COND FALSE !(s__state == 4385) [L138] COND FALSE !(s__state == 4400) [L141] COND FALSE !(s__state == 4401) [L144] COND FALSE !(s__state == 4416) [L147] COND FALSE !(s__state == 4417) [L150] COND TRUE s__state == 4432 [L343] ret = __VERIFIER_nondet_int() [L344] COND TRUE blastFlag == 4 [L573] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 414 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.7s, OverallIterations: 22, TraceHistogramMax: 6, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10117 SDtfs, 6107 SDslu, 10369 SDs, 0 SdLazy, 2304 SolverSat, 326 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7477occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 21 MinimizatonAttempts, 8171 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...