/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 14:57:32,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 14:57:32,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 14:57:32,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 14:57:32,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 14:57:32,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 14:57:32,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 14:57:32,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 14:57:32,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 14:57:32,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 14:57:32,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 14:57:32,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 14:57:32,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 14:57:32,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 14:57:32,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 14:57:32,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 14:57:32,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 14:57:32,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 14:57:32,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 14:57:32,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 14:57:32,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 14:57:32,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 14:57:32,423 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 14:57:32,424 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 14:57:32,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-24 14:57:32,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 14:57:32,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 14:57:32,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 14:57:32,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 14:57:32,471 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 14:57:32,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 14:57:32,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 14:57:32,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 14:57:32,473 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 14:57:32,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 14:57:32,474 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 14:57:32,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 14:57:32,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 14:57:32,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 14:57:32,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 14:57:32,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 14:57:32,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 14:57:32,475 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 14:57:32,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 14:57:32,475 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 14:57:32,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 14:57:32,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 14:57:32,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 14:57:32,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 14:57:32,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 14:57:32,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 14:57:32,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 14:57:32,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 14:57:32,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 14:57:32,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 14:57:32,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 14:57:32,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 14:57:32,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 14:57:32,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 14:57:32,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 14:57:32,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 14:57:32,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 14:57:32,967 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 14:57:32,967 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 14:57:32,970 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-24 14:57:33,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e70e2f6b/7dfe164dad7647eb93d3e636b20d0667/FLAG38eed5cf7 [2020-09-24 14:57:33,564 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 14:57:33,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_4.cil-2.c [2020-09-24 14:57:33,577 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e70e2f6b/7dfe164dad7647eb93d3e636b20d0667/FLAG38eed5cf7 [2020-09-24 14:57:33,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6e70e2f6b/7dfe164dad7647eb93d3e636b20d0667 [2020-09-24 14:57:33,877 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 14:57:33,883 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 14:57:33,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 14:57:33,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 14:57:33,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 14:57:33,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:57:33" (1/1) ... [2020-09-24 14:57:33,893 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67bb90ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:33, skipping insertion in model container [2020-09-24 14:57:33,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:57:33" (1/1) ... [2020-09-24 14:57:33,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 14:57:33,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 14:57:34,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 14:57:34,328 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 14:57:34,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 14:57:34,486 INFO L208 MainTranslator]: Completed translation [2020-09-24 14:57:34,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34 WrapperNode [2020-09-24 14:57:34,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 14:57:34,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 14:57:34,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 14:57:34,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 14:57:34,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (1/1) ... [2020-09-24 14:57:34,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (1/1) ... [2020-09-24 14:57:34,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (1/1) ... [2020-09-24 14:57:34,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (1/1) ... [2020-09-24 14:57:34,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (1/1) ... [2020-09-24 14:57:34,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (1/1) ... [2020-09-24 14:57:34,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (1/1) ... [2020-09-24 14:57:34,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 14:57:34,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 14:57:34,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 14:57:34,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 14:57:34,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (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 [2020-09-24 14:57:34,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 14:57:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 14:57:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-24 14:57:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 14:57:34,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 14:57:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-24 14:57:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 14:57:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-24 14:57:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-24 14:57:34,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 14:57:34,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 14:57:34,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 14:57:34,898 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-24 14:57:35,429 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-24 14:57:35,430 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-24 14:57:35,454 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 14:57:35,455 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 14:57:35,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:57:35 BoogieIcfgContainer [2020-09-24 14:57:35,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 14:57:35,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 14:57:35,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 14:57:35,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 14:57:35,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 02:57:33" (1/3) ... [2020-09-24 14:57:35,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe125d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:57:35, skipping insertion in model container [2020-09-24 14:57:35,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:57:34" (2/3) ... [2020-09-24 14:57:35,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe125d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:57:35, skipping insertion in model container [2020-09-24 14:57:35,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:57:35" (3/3) ... [2020-09-24 14:57:35,472 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_4.cil-2.c [2020-09-24 14:57:35,483 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 14:57:35,493 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 14:57:35,515 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 14:57:35,546 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 14:57:35,546 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 14:57:35,546 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 14:57:35,546 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 14:57:35,547 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 14:57:35,547 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 14:57:35,547 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 14:57:35,547 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 14:57:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2020-09-24 14:57:35,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 14:57:35,595 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:35,596 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] [2020-09-24 14:57:35,597 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:35,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:35,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1739904560, now seen corresponding path program 1 times [2020-09-24 14:57:35,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:35,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1461058930] [2020-09-24 14:57:35,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:36,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:36,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:57:36,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1461058930] [2020-09-24 14:57:36,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:36,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 14:57:36,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157302435] [2020-09-24 14:57:36,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 14:57:36,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:36,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 14:57:36,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 14:57:36,219 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 6 states. [2020-09-24 14:57:36,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:36,649 INFO L93 Difference]: Finished difference Result 695 states and 910 transitions. [2020-09-24 14:57:36,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 14:57:36,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-24 14:57:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:36,671 INFO L225 Difference]: With dead ends: 695 [2020-09-24 14:57:36,671 INFO L226 Difference]: Without dead ends: 370 [2020-09-24 14:57:36,678 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 [2020-09-24 14:57:36,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-09-24 14:57:36,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 355. [2020-09-24 14:57:36,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 14:57:36,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 414 transitions. [2020-09-24 14:57:36,757 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 414 transitions. Word has length 167 [2020-09-24 14:57:36,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:36,758 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 414 transitions. [2020-09-24 14:57:36,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 14:57:36,759 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 414 transitions. [2020-09-24 14:57:36,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-09-24 14:57:36,766 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:36,767 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] [2020-09-24 14:57:36,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 14:57:36,767 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:36,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:36,771 INFO L82 PathProgramCache]: Analyzing trace with hash 507328089, now seen corresponding path program 1 times [2020-09-24 14:57:36,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:36,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276059148] [2020-09-24 14:57:36,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:36,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:57:37,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276059148] [2020-09-24 14:57:37,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:37,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 14:57:37,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101194524] [2020-09-24 14:57:37,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 14:57:37,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:37,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 14:57:37,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 14:57:37,044 INFO L87 Difference]: Start difference. First operand 355 states and 414 transitions. Second operand 6 states. [2020-09-24 14:57:37,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:37,385 INFO L93 Difference]: Finished difference Result 616 states and 766 transitions. [2020-09-24 14:57:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 14:57:37,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 186 [2020-09-24 14:57:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:37,389 INFO L225 Difference]: With dead ends: 616 [2020-09-24 14:57:37,389 INFO L226 Difference]: Without dead ends: 413 [2020-09-24 14:57:37,391 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 [2020-09-24 14:57:37,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-09-24 14:57:37,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 368. [2020-09-24 14:57:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-09-24 14:57:37,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 432 transitions. [2020-09-24 14:57:37,413 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 432 transitions. Word has length 186 [2020-09-24 14:57:37,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:37,414 INFO L479 AbstractCegarLoop]: Abstraction has 368 states and 432 transitions. [2020-09-24 14:57:37,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 14:57:37,415 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 432 transitions. [2020-09-24 14:57:37,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 14:57:37,417 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:37,417 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] [2020-09-24 14:57:37,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 14:57:37,418 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:37,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:37,418 INFO L82 PathProgramCache]: Analyzing trace with hash -5837123, now seen corresponding path program 1 times [2020-09-24 14:57:37,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:37,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034131826] [2020-09-24 14:57:37,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:37,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:57:37,565 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034131826] [2020-09-24 14:57:37,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:37,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:37,566 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415252634] [2020-09-24 14:57:37,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:37,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:37,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:37,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:37,568 INFO L87 Difference]: Start difference. First operand 368 states and 432 transitions. Second operand 3 states. [2020-09-24 14:57:37,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:37,739 INFO L93 Difference]: Finished difference Result 612 states and 746 transitions. [2020-09-24 14:57:37,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:37,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2020-09-24 14:57:37,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:37,742 INFO L225 Difference]: With dead ends: 612 [2020-09-24 14:57:37,742 INFO L226 Difference]: Without dead ends: 396 [2020-09-24 14:57:37,743 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 [2020-09-24 14:57:37,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-09-24 14:57:37,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 386. [2020-09-24 14:57:37,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-24 14:57:37,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 455 transitions. [2020-09-24 14:57:37,759 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 455 transitions. Word has length 190 [2020-09-24 14:57:37,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:37,760 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 455 transitions. [2020-09-24 14:57:37,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:37,760 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 455 transitions. [2020-09-24 14:57:37,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-09-24 14:57:37,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:37,764 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] [2020-09-24 14:57:37,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 14:57:37,765 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:37,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:37,766 INFO L82 PathProgramCache]: Analyzing trace with hash 491551320, now seen corresponding path program 1 times [2020-09-24 14:57:37,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:37,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841328184] [2020-09-24 14:57:37,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:37,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 14:57:37,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841328184] [2020-09-24 14:57:37,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:37,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:37,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383840728] [2020-09-24 14:57:37,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:37,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:37,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:37,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:37,917 INFO L87 Difference]: Start difference. First operand 386 states and 455 transitions. Second operand 3 states. [2020-09-24 14:57:37,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:37,985 INFO L93 Difference]: Finished difference Result 847 states and 1047 transitions. [2020-09-24 14:57:37,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:37,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 197 [2020-09-24 14:57:37,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:37,991 INFO L225 Difference]: With dead ends: 847 [2020-09-24 14:57:37,991 INFO L226 Difference]: Without dead ends: 613 [2020-09-24 14:57:37,993 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 [2020-09-24 14:57:37,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-09-24 14:57:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2020-09-24 14:57:38,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2020-09-24 14:57:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 743 transitions. [2020-09-24 14:57:38,018 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 743 transitions. Word has length 197 [2020-09-24 14:57:38,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:38,019 INFO L479 AbstractCegarLoop]: Abstraction has 613 states and 743 transitions. [2020-09-24 14:57:38,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:38,019 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 743 transitions. [2020-09-24 14:57:38,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 14:57:38,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:38,025 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] [2020-09-24 14:57:38,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 14:57:38,026 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:38,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:38,027 INFO L82 PathProgramCache]: Analyzing trace with hash -525577979, now seen corresponding path program 1 times [2020-09-24 14:57:38,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:38,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099762403] [2020-09-24 14:57:38,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:38,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:38,168 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 14:57:38,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099762403] [2020-09-24 14:57:38,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:38,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:38,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698224544] [2020-09-24 14:57:38,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:38,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:38,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:38,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:38,171 INFO L87 Difference]: Start difference. First operand 613 states and 743 transitions. Second operand 3 states. [2020-09-24 14:57:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:38,322 INFO L93 Difference]: Finished difference Result 1135 states and 1416 transitions. [2020-09-24 14:57:38,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:38,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2020-09-24 14:57:38,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:38,326 INFO L225 Difference]: With dead ends: 1135 [2020-09-24 14:57:38,327 INFO L226 Difference]: Without dead ends: 674 [2020-09-24 14:57:38,328 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 [2020-09-24 14:57:38,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2020-09-24 14:57:38,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 653. [2020-09-24 14:57:38,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-09-24 14:57:38,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 793 transitions. [2020-09-24 14:57:38,347 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 793 transitions. Word has length 210 [2020-09-24 14:57:38,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:38,348 INFO L479 AbstractCegarLoop]: Abstraction has 653 states and 793 transitions. [2020-09-24 14:57:38,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 793 transitions. [2020-09-24 14:57:38,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 14:57:38,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:38,352 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] [2020-09-24 14:57:38,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 14:57:38,353 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:38,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:38,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1730770704, now seen corresponding path program 1 times [2020-09-24 14:57:38,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:38,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629672840] [2020-09-24 14:57:38,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:38,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:38,471 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:57:38,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629672840] [2020-09-24 14:57:38,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:38,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:38,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878584937] [2020-09-24 14:57:38,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:38,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:38,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:38,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:38,482 INFO L87 Difference]: Start difference. First operand 653 states and 793 transitions. Second operand 3 states. [2020-09-24 14:57:38,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:38,532 INFO L93 Difference]: Finished difference Result 1585 states and 1965 transitions. [2020-09-24 14:57:38,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:38,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-09-24 14:57:38,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:38,542 INFO L225 Difference]: With dead ends: 1585 [2020-09-24 14:57:38,543 INFO L226 Difference]: Without dead ends: 1084 [2020-09-24 14:57:38,545 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 [2020-09-24 14:57:38,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2020-09-24 14:57:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1082. [2020-09-24 14:57:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1082 states. [2020-09-24 14:57:38,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1319 transitions. [2020-09-24 14:57:38,603 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1319 transitions. Word has length 217 [2020-09-24 14:57:38,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:38,605 INFO L479 AbstractCegarLoop]: Abstraction has 1082 states and 1319 transitions. [2020-09-24 14:57:38,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:38,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1319 transitions. [2020-09-24 14:57:38,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-24 14:57:38,613 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:38,613 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] [2020-09-24 14:57:38,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 14:57:38,614 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:38,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:38,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1258952316, now seen corresponding path program 1 times [2020-09-24 14:57:38,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:38,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804573098] [2020-09-24 14:57:38,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:38,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 14:57:38,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804573098] [2020-09-24 14:57:38,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:38,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:38,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399286242] [2020-09-24 14:57:38,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:38,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:38,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:38,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:38,814 INFO L87 Difference]: Start difference. First operand 1082 states and 1319 transitions. Second operand 3 states. [2020-09-24 14:57:38,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:38,874 INFO L93 Difference]: Finished difference Result 2030 states and 2504 transitions. [2020-09-24 14:57:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:38,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 218 [2020-09-24 14:57:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:38,883 INFO L225 Difference]: With dead ends: 2030 [2020-09-24 14:57:38,883 INFO L226 Difference]: Without dead ends: 1100 [2020-09-24 14:57:38,886 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 [2020-09-24 14:57:38,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2020-09-24 14:57:38,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1090. [2020-09-24 14:57:38,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1090 states. [2020-09-24 14:57:38,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1323 transitions. [2020-09-24 14:57:38,934 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1323 transitions. Word has length 218 [2020-09-24 14:57:38,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:38,935 INFO L479 AbstractCegarLoop]: Abstraction has 1090 states and 1323 transitions. [2020-09-24 14:57:38,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1323 transitions. [2020-09-24 14:57:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 14:57:38,942 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:38,943 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] [2020-09-24 14:57:38,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 14:57:38,943 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:38,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:38,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1830962644, now seen corresponding path program 1 times [2020-09-24 14:57:38,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:38,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [679291640] [2020-09-24 14:57:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:39,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:39,086 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-24 14:57:39,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [679291640] [2020-09-24 14:57:39,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:39,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:39,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065529540] [2020-09-24 14:57:39,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:39,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:39,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:39,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:39,090 INFO L87 Difference]: Start difference. First operand 1090 states and 1323 transitions. Second operand 3 states. [2020-09-24 14:57:39,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:39,172 INFO L93 Difference]: Finished difference Result 2952 states and 3635 transitions. [2020-09-24 14:57:39,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:39,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-09-24 14:57:39,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:39,186 INFO L225 Difference]: With dead ends: 2952 [2020-09-24 14:57:39,186 INFO L226 Difference]: Without dead ends: 2014 [2020-09-24 14:57:39,190 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 [2020-09-24 14:57:39,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2020-09-24 14:57:39,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2012. [2020-09-24 14:57:39,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2012 states. [2020-09-24 14:57:39,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2012 states to 2012 states and 2455 transitions. [2020-09-24 14:57:39,304 INFO L78 Accepts]: Start accepts. Automaton has 2012 states and 2455 transitions. Word has length 220 [2020-09-24 14:57:39,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:39,305 INFO L479 AbstractCegarLoop]: Abstraction has 2012 states and 2455 transitions. [2020-09-24 14:57:39,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:39,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2012 states and 2455 transitions. [2020-09-24 14:57:39,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 14:57:39,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:39,314 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] [2020-09-24 14:57:39,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 14:57:39,315 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:39,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:39,316 INFO L82 PathProgramCache]: Analyzing trace with hash 777824814, now seen corresponding path program 1 times [2020-09-24 14:57:39,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:39,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616744463] [2020-09-24 14:57:39,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:39,472 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 14:57:39,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616744463] [2020-09-24 14:57:39,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:39,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:39,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386988416] [2020-09-24 14:57:39,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:39,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:39,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:39,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:39,476 INFO L87 Difference]: Start difference. First operand 2012 states and 2455 transitions. Second operand 3 states. [2020-09-24 14:57:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:39,557 INFO L93 Difference]: Finished difference Result 2967 states and 3629 transitions. [2020-09-24 14:57:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:39,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2020-09-24 14:57:39,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:39,572 INFO L225 Difference]: With dead ends: 2967 [2020-09-24 14:57:39,572 INFO L226 Difference]: Without dead ends: 2029 [2020-09-24 14:57:39,574 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 [2020-09-24 14:57:39,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2020-09-24 14:57:39,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2027. [2020-09-24 14:57:39,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2027 states. [2020-09-24 14:57:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2027 states to 2027 states and 2461 transitions. [2020-09-24 14:57:39,660 INFO L78 Accepts]: Start accepts. Automaton has 2027 states and 2461 transitions. Word has length 220 [2020-09-24 14:57:39,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:39,661 INFO L479 AbstractCegarLoop]: Abstraction has 2027 states and 2461 transitions. [2020-09-24 14:57:39,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2027 states and 2461 transitions. [2020-09-24 14:57:39,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 14:57:39,668 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:39,669 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] [2020-09-24 14:57:39,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 14:57:39,669 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:39,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:39,670 INFO L82 PathProgramCache]: Analyzing trace with hash -939173952, now seen corresponding path program 1 times [2020-09-24 14:57:39,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:39,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082709201] [2020-09-24 14:57:39,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:39,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-24 14:57:39,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082709201] [2020-09-24 14:57:39,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:39,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:39,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984254366] [2020-09-24 14:57:39,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:39,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:39,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:39,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:39,792 INFO L87 Difference]: Start difference. First operand 2027 states and 2461 transitions. Second operand 3 states. [2020-09-24 14:57:39,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:39,899 INFO L93 Difference]: Finished difference Result 3887 states and 4768 transitions. [2020-09-24 14:57:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:39,900 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-09-24 14:57:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:39,915 INFO L225 Difference]: With dead ends: 3887 [2020-09-24 14:57:39,916 INFO L226 Difference]: Without dead ends: 2946 [2020-09-24 14:57:39,919 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 [2020-09-24 14:57:39,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2020-09-24 14:57:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2020-09-24 14:57:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2946 states. [2020-09-24 14:57:40,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 3588 transitions. [2020-09-24 14:57:40,030 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 3588 transitions. Word has length 221 [2020-09-24 14:57:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:40,031 INFO L479 AbstractCegarLoop]: Abstraction has 2946 states and 3588 transitions. [2020-09-24 14:57:40,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 3588 transitions. [2020-09-24 14:57:40,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-24 14:57:40,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:40,039 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] [2020-09-24 14:57:40,039 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 14:57:40,039 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:40,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:40,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1852648600, now seen corresponding path program 1 times [2020-09-24 14:57:40,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:40,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412698160] [2020-09-24 14:57:40,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:40,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:40,168 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 14:57:40,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412698160] [2020-09-24 14:57:40,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:40,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:40,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865487658] [2020-09-24 14:57:40,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:40,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:40,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:40,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:40,171 INFO L87 Difference]: Start difference. First operand 2946 states and 3588 transitions. Second operand 3 states. [2020-09-24 14:57:40,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:40,495 INFO L93 Difference]: Finished difference Result 6400 states and 8052 transitions. [2020-09-24 14:57:40,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:40,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-09-24 14:57:40,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:40,516 INFO L225 Difference]: With dead ends: 6400 [2020-09-24 14:57:40,516 INFO L226 Difference]: Without dead ends: 3609 [2020-09-24 14:57:40,523 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 [2020-09-24 14:57:40,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3609 states. [2020-09-24 14:57:40,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3609 to 3423. [2020-09-24 14:57:40,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3423 states. [2020-09-24 14:57:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 4104 transitions. [2020-09-24 14:57:40,655 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 4104 transitions. Word has length 231 [2020-09-24 14:57:40,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:40,655 INFO L479 AbstractCegarLoop]: Abstraction has 3423 states and 4104 transitions. [2020-09-24 14:57:40,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:40,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 4104 transitions. [2020-09-24 14:57:40,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-24 14:57:40,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:40,662 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] [2020-09-24 14:57:40,662 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 14:57:40,663 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:40,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:40,663 INFO L82 PathProgramCache]: Analyzing trace with hash 598717384, now seen corresponding path program 1 times [2020-09-24 14:57:40,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:40,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226692234] [2020-09-24 14:57:40,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:40,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 14:57:40,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226692234] [2020-09-24 14:57:40,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:40,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:40,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736531037] [2020-09-24 14:57:40,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:40,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:40,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:40,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:40,770 INFO L87 Difference]: Start difference. First operand 3423 states and 4104 transitions. Second operand 3 states. [2020-09-24 14:57:41,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:41,008 INFO L93 Difference]: Finished difference Result 7032 states and 8518 transitions. [2020-09-24 14:57:41,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:41,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 231 [2020-09-24 14:57:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:41,025 INFO L225 Difference]: With dead ends: 7032 [2020-09-24 14:57:41,026 INFO L226 Difference]: Without dead ends: 3776 [2020-09-24 14:57:41,032 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 [2020-09-24 14:57:41,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2020-09-24 14:57:41,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3636. [2020-09-24 14:57:41,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3636 states. [2020-09-24 14:57:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 4332 transitions. [2020-09-24 14:57:41,134 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 4332 transitions. Word has length 231 [2020-09-24 14:57:41,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:41,135 INFO L479 AbstractCegarLoop]: Abstraction has 3636 states and 4332 transitions. [2020-09-24 14:57:41,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:41,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 4332 transitions. [2020-09-24 14:57:41,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-09-24 14:57:41,144 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:41,145 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] [2020-09-24 14:57:41,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 14:57:41,145 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:41,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:41,146 INFO L82 PathProgramCache]: Analyzing trace with hash -320985619, now seen corresponding path program 1 times [2020-09-24 14:57:41,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:41,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136720337] [2020-09-24 14:57:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:41,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:41,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:41,252 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 14:57:41,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136720337] [2020-09-24 14:57:41,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:41,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:41,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052333586] [2020-09-24 14:57:41,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:41,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:41,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:41,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:41,255 INFO L87 Difference]: Start difference. First operand 3636 states and 4332 transitions. Second operand 3 states. [2020-09-24 14:57:41,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:41,380 INFO L93 Difference]: Finished difference Result 7105 states and 8510 transitions. [2020-09-24 14:57:41,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:41,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-09-24 14:57:41,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:41,405 INFO L225 Difference]: With dead ends: 7105 [2020-09-24 14:57:41,405 INFO L226 Difference]: Without dead ends: 4785 [2020-09-24 14:57:41,413 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 [2020-09-24 14:57:41,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4785 states. [2020-09-24 14:57:41,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4785 to 4785. [2020-09-24 14:57:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4785 states. [2020-09-24 14:57:41,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4785 states to 4785 states and 5711 transitions. [2020-09-24 14:57:41,579 INFO L78 Accepts]: Start accepts. Automaton has 4785 states and 5711 transitions. Word has length 246 [2020-09-24 14:57:41,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:41,579 INFO L479 AbstractCegarLoop]: Abstraction has 4785 states and 5711 transitions. [2020-09-24 14:57:41,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:41,580 INFO L276 IsEmpty]: Start isEmpty. Operand 4785 states and 5711 transitions. [2020-09-24 14:57:41,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-24 14:57:41,594 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:41,595 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] [2020-09-24 14:57:41,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 14:57:41,596 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:41,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:41,596 INFO L82 PathProgramCache]: Analyzing trace with hash -2112197708, now seen corresponding path program 1 times [2020-09-24 14:57:41,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:41,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105510190] [2020-09-24 14:57:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:41,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:41,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 14:57:41,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105510190] [2020-09-24 14:57:41,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:41,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:41,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215271324] [2020-09-24 14:57:41,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:41,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:41,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:41,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:41,808 INFO L87 Difference]: Start difference. First operand 4785 states and 5711 transitions. Second operand 3 states. [2020-09-24 14:57:42,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:42,042 INFO L93 Difference]: Finished difference Result 9827 states and 11856 transitions. [2020-09-24 14:57:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:42,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 255 [2020-09-24 14:57:42,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:42,085 INFO L225 Difference]: With dead ends: 9827 [2020-09-24 14:57:42,085 INFO L226 Difference]: Without dead ends: 5209 [2020-09-24 14:57:42,096 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 [2020-09-24 14:57:42,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2020-09-24 14:57:42,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5101. [2020-09-24 14:57:42,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5101 states. [2020-09-24 14:57:42,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 6047 transitions. [2020-09-24 14:57:42,228 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 6047 transitions. Word has length 255 [2020-09-24 14:57:42,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:42,228 INFO L479 AbstractCegarLoop]: Abstraction has 5101 states and 6047 transitions. [2020-09-24 14:57:42,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 6047 transitions. [2020-09-24 14:57:42,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-24 14:57:42,244 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:42,244 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-09-24 14:57:42,245 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 14:57:42,245 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:42,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:42,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1182669231, now seen corresponding path program 1 times [2020-09-24 14:57:42,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:42,246 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883101761] [2020-09-24 14:57:42,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:42,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:42,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:42,387 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 83 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 14:57:42,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883101761] [2020-09-24 14:57:42,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:57:42,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-24 14:57:42,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168820157] [2020-09-24 14:57:42,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 14:57:42,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:42,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 14:57:42,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 14:57:42,390 INFO L87 Difference]: Start difference. First operand 5101 states and 6047 transitions. Second operand 5 states. [2020-09-24 14:57:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:42,869 INFO L93 Difference]: Finished difference Result 12439 states and 15060 transitions. [2020-09-24 14:57:42,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 14:57:42,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-09-24 14:57:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:42,884 INFO L225 Difference]: With dead ends: 12439 [2020-09-24 14:57:42,885 INFO L226 Difference]: Without dead ends: 7505 [2020-09-24 14:57:42,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 14:57:42,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2020-09-24 14:57:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 5858. [2020-09-24 14:57:43,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5858 states. [2020-09-24 14:57:43,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 6931 transitions. [2020-09-24 14:57:43,042 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 6931 transitions. Word has length 274 [2020-09-24 14:57:43,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:43,043 INFO L479 AbstractCegarLoop]: Abstraction has 5858 states and 6931 transitions. [2020-09-24 14:57:43,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 14:57:43,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 6931 transitions. [2020-09-24 14:57:43,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-24 14:57:43,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:43,057 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-09-24 14:57:43,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 14:57:43,058 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:43,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:43,058 INFO L82 PathProgramCache]: Analyzing trace with hash 178559340, now seen corresponding path program 2 times [2020-09-24 14:57:43,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:43,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783788022] [2020-09-24 14:57:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:43,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:43,203 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 14:57:43,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783788022] [2020-09-24 14:57:43,205 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:43,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 14:57:43,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738493010] [2020-09-24 14:57:43,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 14:57:43,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:43,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 14:57:43,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 14:57:43,208 INFO L87 Difference]: Start difference. First operand 5858 states and 6931 transitions. Second operand 5 states. [2020-09-24 14:57:43,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:43,545 INFO L93 Difference]: Finished difference Result 9951 states and 11714 transitions. [2020-09-24 14:57:43,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 14:57:43,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-09-24 14:57:43,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:43,561 INFO L225 Difference]: With dead ends: 9951 [2020-09-24 14:57:43,561 INFO L226 Difference]: Without dead ends: 7022 [2020-09-24 14:57:43,569 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 [2020-09-24 14:57:43,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7022 states. [2020-09-24 14:57:43,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7022 to 5858. [2020-09-24 14:57:43,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5858 states. [2020-09-24 14:57:43,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 6931 transitions. [2020-09-24 14:57:43,780 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 6931 transitions. Word has length 277 [2020-09-24 14:57:43,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:43,781 INFO L479 AbstractCegarLoop]: Abstraction has 5858 states and 6931 transitions. [2020-09-24 14:57:43,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 14:57:43,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 6931 transitions. [2020-09-24 14:57:43,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-24 14:57:43,801 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:43,802 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-09-24 14:57:43,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 14:57:43,802 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:43,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:43,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1946922308, now seen corresponding path program 1 times [2020-09-24 14:57:43,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:43,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490980525] [2020-09-24 14:57:43,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:43,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-09-24 14:57:44,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490980525] [2020-09-24 14:57:44,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:44,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 14:57:44,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300511244] [2020-09-24 14:57:44,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 14:57:44,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:44,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 14:57:44,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 14:57:44,123 INFO L87 Difference]: Start difference. First operand 5858 states and 6931 transitions. Second operand 4 states. [2020-09-24 14:57:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:44,667 INFO L93 Difference]: Finished difference Result 12288 states and 14641 transitions. [2020-09-24 14:57:44,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 14:57:44,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 277 [2020-09-24 14:57:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:44,686 INFO L225 Difference]: With dead ends: 12288 [2020-09-24 14:57:44,686 INFO L226 Difference]: Without dead ends: 9355 [2020-09-24 14:57:44,695 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 [2020-09-24 14:57:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9355 states. [2020-09-24 14:57:44,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9355 to 5930. [2020-09-24 14:57:44,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5930 states. [2020-09-24 14:57:44,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5930 states to 5930 states and 7019 transitions. [2020-09-24 14:57:44,873 INFO L78 Accepts]: Start accepts. Automaton has 5930 states and 7019 transitions. Word has length 277 [2020-09-24 14:57:44,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:44,874 INFO L479 AbstractCegarLoop]: Abstraction has 5930 states and 7019 transitions. [2020-09-24 14:57:44,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 14:57:44,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5930 states and 7019 transitions. [2020-09-24 14:57:44,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-09-24 14:57:44,886 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:44,886 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-09-24 14:57:44,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 14:57:44,887 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:44,887 INFO L82 PathProgramCache]: Analyzing trace with hash -507122916, now seen corresponding path program 3 times [2020-09-24 14:57:44,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:44,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781143226] [2020-09-24 14:57:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:44,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:44,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:45,027 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-24 14:57:45,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781143226] [2020-09-24 14:57:45,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:45,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 14:57:45,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552719651] [2020-09-24 14:57:45,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 14:57:45,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:45,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 14:57:45,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 14:57:45,035 INFO L87 Difference]: Start difference. First operand 5930 states and 7019 transitions. Second operand 5 states. [2020-09-24 14:57:45,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:45,436 INFO L93 Difference]: Finished difference Result 9635 states and 11354 transitions. [2020-09-24 14:57:45,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 14:57:45,436 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 277 [2020-09-24 14:57:45,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:45,454 INFO L225 Difference]: With dead ends: 9635 [2020-09-24 14:57:45,454 INFO L226 Difference]: Without dead ends: 6634 [2020-09-24 14:57:45,464 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 [2020-09-24 14:57:45,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6634 states. [2020-09-24 14:57:45,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6634 to 6010. [2020-09-24 14:57:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6010 states. [2020-09-24 14:57:45,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6010 states to 6010 states and 7107 transitions. [2020-09-24 14:57:45,712 INFO L78 Accepts]: Start accepts. Automaton has 6010 states and 7107 transitions. Word has length 277 [2020-09-24 14:57:45,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:45,712 INFO L479 AbstractCegarLoop]: Abstraction has 6010 states and 7107 transitions. [2020-09-24 14:57:45,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 14:57:45,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6010 states and 7107 transitions. [2020-09-24 14:57:45,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-09-24 14:57:45,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:45,725 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] [2020-09-24 14:57:45,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 14:57:45,726 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:45,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:45,726 INFO L82 PathProgramCache]: Analyzing trace with hash 875870054, now seen corresponding path program 1 times [2020-09-24 14:57:45,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:45,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915215784] [2020-09-24 14:57:45,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:45,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:57:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:57:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-09-24 14:57:45,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915215784] [2020-09-24 14:57:45,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:57:45,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 14:57:45,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991859220] [2020-09-24 14:57:45,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 14:57:45,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:57:45,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 14:57:45,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 14:57:45,857 INFO L87 Difference]: Start difference. First operand 6010 states and 7107 transitions. Second operand 3 states. [2020-09-24 14:57:45,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:57:45,992 INFO L93 Difference]: Finished difference Result 11210 states and 13290 transitions. [2020-09-24 14:57:45,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 14:57:45,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 279 [2020-09-24 14:57:45,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:57:46,009 INFO L225 Difference]: With dead ends: 11210 [2020-09-24 14:57:46,009 INFO L226 Difference]: Without dead ends: 6822 [2020-09-24 14:57:46,019 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 [2020-09-24 14:57:46,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6822 states. [2020-09-24 14:57:46,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6822 to 6822. [2020-09-24 14:57:46,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6822 states. [2020-09-24 14:57:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6822 states to 6822 states and 8061 transitions. [2020-09-24 14:57:46,178 INFO L78 Accepts]: Start accepts. Automaton has 6822 states and 8061 transitions. Word has length 279 [2020-09-24 14:57:46,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:57:46,179 INFO L479 AbstractCegarLoop]: Abstraction has 6822 states and 8061 transitions. [2020-09-24 14:57:46,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 14:57:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 6822 states and 8061 transitions. [2020-09-24 14:57:46,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-09-24 14:57:46,192 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:57:46,192 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] [2020-09-24 14:57:46,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 14:57:46,193 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:57:46,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:57:46,193 INFO L82 PathProgramCache]: Analyzing trace with hash -802173269, now seen corresponding path program 1 times [2020-09-24 14:57:46,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:57:46,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900163048] [2020-09-24 14:57:46,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:57:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 14:57:46,258 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 14:57:46,258 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 14:57:46,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 14:57:46,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 02:57:46 BoogieIcfgContainer [2020-09-24 14:57:46,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 14:57:46,323 INFO L168 Benchmark]: Toolchain (without parser) took 12442.15 ms. Allocated memory was 137.4 MB in the beginning and 697.3 MB in the end (delta: 559.9 MB). Free memory was 100.3 MB in the beginning and 335.7 MB in the end (delta: -235.4 MB). Peak memory consumption was 324.5 MB. Max. memory is 7.1 GB. [2020-09-24 14:57:46,328 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-24 14:57:46,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 603.57 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 99.5 MB in the beginning and 175.2 MB in the end (delta: -75.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2020-09-24 14:57:46,331 INFO L168 Benchmark]: Boogie Preprocessor took 64.76 ms. Allocated memory is still 200.3 MB. Free memory was 175.2 MB in the beginning and 172.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-09-24 14:57:46,334 INFO L168 Benchmark]: RCFGBuilder took 909.98 ms. Allocated memory is still 200.3 MB. Free memory was 172.8 MB in the beginning and 107.7 MB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. [2020-09-24 14:57:46,334 INFO L168 Benchmark]: TraceAbstraction took 10855.05 ms. Allocated memory was 200.3 MB in the beginning and 697.3 MB in the end (delta: 497.0 MB). Free memory was 107.7 MB in the beginning and 335.7 MB in the end (delta: -228.1 MB). Peak memory consumption was 269.0 MB. Max. memory is 7.1 GB. [2020-09-24 14:57:46,341 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.5 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 603.57 ms. Allocated memory was 137.4 MB in the beginning and 200.3 MB in the end (delta: 62.9 MB). Free memory was 99.5 MB in the beginning and 175.2 MB in the end (delta: -75.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.76 ms. Allocated memory is still 200.3 MB. Free memory was 175.2 MB in the beginning and 172.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 909.98 ms. Allocated memory is still 200.3 MB. Free memory was 172.8 MB in the beginning and 107.7 MB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10855.05 ms. Allocated memory was 200.3 MB in the beginning and 697.3 MB in the end (delta: 497.0 MB). Free memory was 107.7 MB in the beginning and 335.7 MB in the end (delta: -228.1 MB). Peak memory consumption was 269.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 548]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L553] int s ; [L557] s = 12292 [L558] CALL ssl3_connect(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int() ; [L20] int s__wbio = __VERIFIER_nondet_int() ; [L21] int s__hit = __VERIFIER_nondet_int() ; [L22] int s__rwstate ; [L23] int s__init_buf___0 = __VERIFIER_nondet_int() ; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags = __VERIFIER_nondet_int() ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 = __VERIFIER_nondet_int() ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] long __cil_tmp57 ; [L66] long __cil_tmp58 ; [L67] long __cil_tmp59 ; [L68] long __cil_tmp60 ; [L69] long __cil_tmp61 ; [L70] long __cil_tmp62 ; [L71] long __cil_tmp63 ; [L72] long __cil_tmp64 ; [L73] long __cil_tmp65 ; [L77] s__state = initial_state [L78] blastFlag = 0 [L79] tmp = __VERIFIER_nondet_int() [L80] cb = 0 [L81] ret = -1 [L82] skip = 0 [L83] tmp___0 = 0 [L84] COND TRUE s__info_callback != 0 [L85] cb = s__info_callback [L91] s__in_handshake ++ [L92] COND FALSE !(tmp___1 + 12288) [L98] COND TRUE 1 [L100] state = s__state [L101] COND TRUE s__state == 12292 [L203] s__new_session = 1 [L204] s__state = 4096 [L205] s__ctx__stats__sess_connect_renegotiate ++ [L210] s__server = 0 [L211] COND TRUE cb != 0 [L215] __cil_tmp55 = s__version + 65280 [L216] COND FALSE !(__cil_tmp55 != 768) [L221] s__type = 4096 [L222] COND FALSE !(s__init_buf___0 == 0) [L234] COND FALSE !(! tmp___4) [L238] COND FALSE !(! tmp___5) [L242] s__state = 4368 [L243] s__ctx__stats__sess_connect ++ [L244] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND TRUE s__state == 4368 [L248] s__shutdown = 0 [L249] ret = __VERIFIER_nondet_int() [L250] COND TRUE blastFlag == 0 [L251] blastFlag = 1 [L253] COND FALSE !(ret <= 0) [L256] s__state = 4384 [L257] s__init_num = 0 [L258] COND TRUE s__bbio != s__wbio [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND TRUE s__state == 4384 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 1 [L266] blastFlag = 2 [L268] COND FALSE !(ret <= 0) [L271] COND FALSE !(\read(s__hit)) [L274] s__state = 4400 [L276] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND TRUE s__state == 4400 [L281] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L282] COND FALSE !(__cil_tmp56 + 256UL) [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 2 [L287] blastFlag = 3 [L293] COND FALSE !(ret <= 0) [L298] s__state = 4416 [L299] s__init_num = 0 [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND TRUE s__state == 4416 [L303] ret = __VERIFIER_nondet_int() [L304] COND TRUE blastFlag == 3 [L305] blastFlag = 4 [L307] COND FALSE !(ret <= 0) [L310] s__state = 4432 [L311] s__init_num = 0 [L312] COND FALSE !(! tmp___6) [L520] COND FALSE !(! s__s3__tmp__reuse_message) [L537] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 4096) [L110] COND FALSE !(s__state == 20480) [L113] COND FALSE !(s__state == 4099) [L116] COND FALSE !(s__state == 4368) [L119] COND FALSE !(s__state == 4369) [L122] COND FALSE !(s__state == 4384) [L125] COND FALSE !(s__state == 4385) [L128] COND FALSE !(s__state == 4400) [L131] COND FALSE !(s__state == 4401) [L134] COND FALSE !(s__state == 4416) [L137] COND FALSE !(s__state == 4417) [L140] COND TRUE s__state == 4432 [L319] ret = __VERIFIER_nondet_int() [L320] COND TRUE blastFlag == 4 [L548] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 391 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.7s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8673 SDtfs, 5240 SDslu, 9009 SDs, 0 SdLazy, 2034 SolverSat, 272 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6822occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 7401 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 4673 NumberOfCodeBlocks, 4673 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 4374 ConstructedInterpolants, 0 QuantifiedInterpolants, 1356057 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 18 PerfectInterpolantSequences, 887/892 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...