/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:32:45,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:32:45,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:32:45,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:32:45,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:32:45,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:32:45,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:32:45,595 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:32:45,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:32:45,602 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:32:45,603 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:32:45,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:32:45,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:32:45,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:32:45,612 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:32:45,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:32:45,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:32:45,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:32:45,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:32:45,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:32:45,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:32:45,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:32:45,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:32:45,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:32:45,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:32:45,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:32:45,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:32:45,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:32:45,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 16:32:45,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:32:45,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:32:45,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:32:45,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:32:45,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:32:45,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:32:45,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:32:45,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:32:45,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:32:45,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:32:45,681 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:32:45,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:32:45,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:32:45,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:32:45,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:32:45,683 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:32:45,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:32:45,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:32:45,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:32:45,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:32:45,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:32:45,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:32:45,684 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:32:46,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:32:46,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:32:46,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:32:46,140 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:32:46,141 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:32:46,142 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-04 16:32:46,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16a9c7ac6/1b966d938d5748bf8954ccddcbf7b66b/FLAG19db0a508 [2020-09-04 16:32:46,877 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:32:46,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-09-04 16:32:46,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16a9c7ac6/1b966d938d5748bf8954ccddcbf7b66b/FLAG19db0a508 [2020-09-04 16:32:47,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/16a9c7ac6/1b966d938d5748bf8954ccddcbf7b66b [2020-09-04 16:32:47,139 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:32:47,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:32:47,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:32:47,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:32:47,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:32:47,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@132432a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47, skipping insertion in model container [2020-09-04 16:32:47,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:32:47,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:32:47,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:32:47,539 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:32:47,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:32:47,761 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:32:47,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47 WrapperNode [2020-09-04 16:32:47,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:32:47,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:32:47,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:32:47,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:32:47,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (1/1) ... [2020-09-04 16:32:47,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:32:47,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:32:47,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:32:47,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:32:47,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:32:47,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:32:47,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:32:47,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-09-04 16:32:47,921 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:32:47,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:32:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-04 16:32:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 16:32:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-04 16:32:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-09-04 16:32:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:32:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:32:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:32:48,156 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-04 16:32:48,850 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-09-04 16:32:48,851 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-09-04 16:32:48,897 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:32:48,898 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 16:32:48,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:32:48 BoogieIcfgContainer [2020-09-04 16:32:48,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:32:48,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:32:48,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:32:48,913 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:32:48,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:32:47" (1/3) ... [2020-09-04 16:32:48,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c99d165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:32:48, skipping insertion in model container [2020-09-04 16:32:48,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:32:47" (2/3) ... [2020-09-04 16:32:48,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c99d165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:32:48, skipping insertion in model container [2020-09-04 16:32:48,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:32:48" (3/3) ... [2020-09-04 16:32:48,919 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-09-04 16:32:48,932 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:32:48,944 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:32:48,969 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:32:49,001 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:32:49,002 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:32:49,002 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:32:49,002 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:32:49,002 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:32:49,002 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:32:49,002 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:32:49,002 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:32:49,029 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-09-04 16:32:49,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-04 16:32:49,056 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:49,058 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] [2020-09-04 16:32:49,059 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:49,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:49,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-09-04 16:32:49,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:49,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [476456253] [2020-09-04 16:32:49,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:49,160 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:49,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:49,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:49,688 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [476456253] [2020-09-04 16:32:49,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:49,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:32:49,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213367338] [2020-09-04 16:32:49,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:32:49,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:49,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:32:49,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:32:49,727 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 6 states. [2020-09-04 16:32:50,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:50,317 INFO L93 Difference]: Finished difference Result 689 states and 904 transitions. [2020-09-04 16:32:50,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:32:50,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-09-04 16:32:50,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:50,362 INFO L225 Difference]: With dead ends: 689 [2020-09-04 16:32:50,362 INFO L226 Difference]: Without dead ends: 364 [2020-09-04 16:32:50,376 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:32:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-09-04 16:32:50,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 349. [2020-09-04 16:32:50,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-09-04 16:32:50,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 408 transitions. [2020-09-04 16:32:50,538 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 408 transitions. Word has length 161 [2020-09-04 16:32:50,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:50,542 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 408 transitions. [2020-09-04 16:32:50,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:32:50,543 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 408 transitions. [2020-09-04 16:32:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-04 16:32:50,559 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:50,561 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] [2020-09-04 16:32:50,561 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:32:50,561 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:50,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:50,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1044760098, now seen corresponding path program 1 times [2020-09-04 16:32:50,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:50,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328808004] [2020-09-04 16:32:50,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:50,601 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:50,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:50,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:50,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328808004] [2020-09-04 16:32:50,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:50,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 16:32:50,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114610538] [2020-09-04 16:32:50,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 16:32:50,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:50,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 16:32:50,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-04 16:32:50,857 INFO L87 Difference]: Start difference. First operand 349 states and 408 transitions. Second operand 6 states. [2020-09-04 16:32:51,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:51,258 INFO L93 Difference]: Finished difference Result 610 states and 760 transitions. [2020-09-04 16:32:51,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:32:51,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2020-09-04 16:32:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:51,265 INFO L225 Difference]: With dead ends: 610 [2020-09-04 16:32:51,265 INFO L226 Difference]: Without dead ends: 407 [2020-09-04 16:32:51,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-04 16:32:51,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-04 16:32:51,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 362. [2020-09-04 16:32:51,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-09-04 16:32:51,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 426 transitions. [2020-09-04 16:32:51,326 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 426 transitions. Word has length 180 [2020-09-04 16:32:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:51,328 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 426 transitions. [2020-09-04 16:32:51,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 16:32:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 426 transitions. [2020-09-04 16:32:51,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-04 16:32:51,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:51,332 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] [2020-09-04 16:32:51,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:32:51,332 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:51,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:51,334 INFO L82 PathProgramCache]: Analyzing trace with hash -975331194, now seen corresponding path program 1 times [2020-09-04 16:32:51,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:51,335 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1168210963] [2020-09-04 16:32:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:51,346 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:51,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:51,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:51,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1168210963] [2020-09-04 16:32:51,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:51,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:51,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475893346] [2020-09-04 16:32:51,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:51,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:51,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:51,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:51,481 INFO L87 Difference]: Start difference. First operand 362 states and 426 transitions. Second operand 3 states. [2020-09-04 16:32:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:51,696 INFO L93 Difference]: Finished difference Result 608 states and 743 transitions. [2020-09-04 16:32:51,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:51,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-09-04 16:32:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:51,701 INFO L225 Difference]: With dead ends: 608 [2020-09-04 16:32:51,701 INFO L226 Difference]: Without dead ends: 392 [2020-09-04 16:32:51,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:51,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-09-04 16:32:51,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 380. [2020-09-04 16:32:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-09-04 16:32:51,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 449 transitions. [2020-09-04 16:32:51,754 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 449 transitions. Word has length 184 [2020-09-04 16:32:51,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:51,756 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 449 transitions. [2020-09-04 16:32:51,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 449 transitions. [2020-09-04 16:32:51,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-04 16:32:51,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:51,760 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] [2020-09-04 16:32:51,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 16:32:51,761 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:51,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:51,762 INFO L82 PathProgramCache]: Analyzing trace with hash 103747241, now seen corresponding path program 1 times [2020-09-04 16:32:51,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:51,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330676069] [2020-09-04 16:32:51,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:51,782 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:51,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:52,034 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330676069] [2020-09-04 16:32:52,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:52,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:52,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605447964] [2020-09-04 16:32:52,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:52,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:52,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:52,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:52,038 INFO L87 Difference]: Start difference. First operand 380 states and 449 transitions. Second operand 3 states. [2020-09-04 16:32:52,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:52,179 INFO L93 Difference]: Finished difference Result 841 states and 1041 transitions. [2020-09-04 16:32:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:52,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-09-04 16:32:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:52,187 INFO L225 Difference]: With dead ends: 841 [2020-09-04 16:32:52,187 INFO L226 Difference]: Without dead ends: 607 [2020-09-04 16:32:52,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:52,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-09-04 16:32:52,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2020-09-04 16:32:52,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-09-04 16:32:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 737 transitions. [2020-09-04 16:32:52,261 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 737 transitions. Word has length 191 [2020-09-04 16:32:52,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:52,262 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 737 transitions. [2020-09-04 16:32:52,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:52,262 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 737 transitions. [2020-09-04 16:32:52,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-04 16:32:52,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:52,265 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] [2020-09-04 16:32:52,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 16:32:52,266 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:52,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:52,267 INFO L82 PathProgramCache]: Analyzing trace with hash -574346418, now seen corresponding path program 1 times [2020-09-04 16:32:52,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:52,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [617567729] [2020-09-04 16:32:52,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:52,276 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:52,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:52,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:52,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [617567729] [2020-09-04 16:32:52,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:52,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:52,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687668852] [2020-09-04 16:32:52,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:52,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:52,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:52,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:52,401 INFO L87 Difference]: Start difference. First operand 607 states and 737 transitions. Second operand 3 states. [2020-09-04 16:32:52,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:52,637 INFO L93 Difference]: Finished difference Result 1129 states and 1410 transitions. [2020-09-04 16:32:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:52,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-09-04 16:32:52,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:52,642 INFO L225 Difference]: With dead ends: 1129 [2020-09-04 16:32:52,642 INFO L226 Difference]: Without dead ends: 668 [2020-09-04 16:32:52,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:52,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-09-04 16:32:52,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 647. [2020-09-04 16:32:52,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-09-04 16:32:52,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 787 transitions. [2020-09-04 16:32:52,705 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 787 transitions. Word has length 204 [2020-09-04 16:32:52,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:52,706 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 787 transitions. [2020-09-04 16:32:52,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:52,707 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 787 transitions. [2020-09-04 16:32:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-04 16:32:52,711 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:52,711 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] [2020-09-04 16:32:52,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 16:32:52,712 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:52,712 INFO L82 PathProgramCache]: Analyzing trace with hash -375106847, now seen corresponding path program 1 times [2020-09-04 16:32:52,713 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:52,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972934635] [2020-09-04 16:32:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:52,724 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:52,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:52,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:52,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972934635] [2020-09-04 16:32:52,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:52,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:52,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669710954] [2020-09-04 16:32:52,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:52,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:52,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:52,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:52,834 INFO L87 Difference]: Start difference. First operand 647 states and 787 transitions. Second operand 3 states. [2020-09-04 16:32:52,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:52,952 INFO L93 Difference]: Finished difference Result 1579 states and 1959 transitions. [2020-09-04 16:32:52,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:52,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-09-04 16:32:52,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:52,961 INFO L225 Difference]: With dead ends: 1579 [2020-09-04 16:32:52,961 INFO L226 Difference]: Without dead ends: 1078 [2020-09-04 16:32:52,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:52,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-09-04 16:32:53,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1076. [2020-09-04 16:32:53,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2020-09-04 16:32:53,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1313 transitions. [2020-09-04 16:32:53,092 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1313 transitions. Word has length 211 [2020-09-04 16:32:53,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:53,093 INFO L479 AbstractCegarLoop]: Abstraction has 1076 states and 1313 transitions. [2020-09-04 16:32:53,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:53,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1313 transitions. [2020-09-04 16:32:53,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-04 16:32:53,098 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:53,099 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] [2020-09-04 16:32:53,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 16:32:53,099 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:53,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:53,100 INFO L82 PathProgramCache]: Analyzing trace with hash 743106501, now seen corresponding path program 1 times [2020-09-04 16:32:53,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:53,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051839323] [2020-09-04 16:32:53,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:53,110 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:53,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:53,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051839323] [2020-09-04 16:32:53,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:53,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:53,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049122026] [2020-09-04 16:32:53,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:53,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:53,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:53,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:53,230 INFO L87 Difference]: Start difference. First operand 1076 states and 1313 transitions. Second operand 3 states. [2020-09-04 16:32:53,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:53,358 INFO L93 Difference]: Finished difference Result 2024 states and 2498 transitions. [2020-09-04 16:32:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:53,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-09-04 16:32:53,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:53,365 INFO L225 Difference]: With dead ends: 2024 [2020-09-04 16:32:53,366 INFO L226 Difference]: Without dead ends: 1094 [2020-09-04 16:32:53,369 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:53,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2020-09-04 16:32:53,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1084. [2020-09-04 16:32:53,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1084 states. [2020-09-04 16:32:53,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1317 transitions. [2020-09-04 16:32:53,473 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1317 transitions. Word has length 212 [2020-09-04 16:32:53,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:53,474 INFO L479 AbstractCegarLoop]: Abstraction has 1084 states and 1317 transitions. [2020-09-04 16:32:53,475 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1317 transitions. [2020-09-04 16:32:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-04 16:32:53,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:53,481 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] [2020-09-04 16:32:53,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 16:32:53,482 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:53,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:53,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1288323979, now seen corresponding path program 1 times [2020-09-04 16:32:53,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:53,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24499389] [2020-09-04 16:32:53,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:53,494 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:53,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:53,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:53,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24499389] [2020-09-04 16:32:53,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:53,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:53,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157909555] [2020-09-04 16:32:53,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:53,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:53,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:53,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:53,641 INFO L87 Difference]: Start difference. First operand 1084 states and 1317 transitions. Second operand 3 states. [2020-09-04 16:32:53,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:53,876 INFO L93 Difference]: Finished difference Result 2946 states and 3629 transitions. [2020-09-04 16:32:53,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:53,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-09-04 16:32:53,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:53,891 INFO L225 Difference]: With dead ends: 2946 [2020-09-04 16:32:53,891 INFO L226 Difference]: Without dead ends: 2008 [2020-09-04 16:32:53,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:53,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2020-09-04 16:32:54,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2006. [2020-09-04 16:32:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2020-09-04 16:32:54,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2449 transitions. [2020-09-04 16:32:54,086 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2449 transitions. Word has length 214 [2020-09-04 16:32:54,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:54,087 INFO L479 AbstractCegarLoop]: Abstraction has 2006 states and 2449 transitions. [2020-09-04 16:32:54,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2449 transitions. [2020-09-04 16:32:54,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-09-04 16:32:54,092 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:54,093 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] [2020-09-04 16:32:54,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 16:32:54,094 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:54,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:54,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1320463479, now seen corresponding path program 1 times [2020-09-04 16:32:54,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:54,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680948641] [2020-09-04 16:32:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:54,109 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:54,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:54,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:54,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680948641] [2020-09-04 16:32:54,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:54,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:54,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093369810] [2020-09-04 16:32:54,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:54,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:54,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:54,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:54,210 INFO L87 Difference]: Start difference. First operand 2006 states and 2449 transitions. Second operand 3 states. [2020-09-04 16:32:54,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:54,366 INFO L93 Difference]: Finished difference Result 2961 states and 3623 transitions. [2020-09-04 16:32:54,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:54,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-09-04 16:32:54,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:54,378 INFO L225 Difference]: With dead ends: 2961 [2020-09-04 16:32:54,378 INFO L226 Difference]: Without dead ends: 2023 [2020-09-04 16:32:54,382 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:54,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2020-09-04 16:32:54,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 2021. [2020-09-04 16:32:54,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2021 states. [2020-09-04 16:32:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2455 transitions. [2020-09-04 16:32:54,547 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2455 transitions. Word has length 214 [2020-09-04 16:32:54,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:54,548 INFO L479 AbstractCegarLoop]: Abstraction has 2021 states and 2455 transitions. [2020-09-04 16:32:54,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:54,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2455 transitions. [2020-09-04 16:32:54,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-09-04 16:32:54,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:54,556 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] [2020-09-04 16:32:54,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 16:32:54,556 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:54,557 INFO L82 PathProgramCache]: Analyzing trace with hash -955395695, now seen corresponding path program 1 times [2020-09-04 16:32:54,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:54,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834877939] [2020-09-04 16:32:54,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:54,565 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:54,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:54,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834877939] [2020-09-04 16:32:54,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:54,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:54,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595290136] [2020-09-04 16:32:54,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:54,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:54,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:54,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:54,709 INFO L87 Difference]: Start difference. First operand 2021 states and 2455 transitions. Second operand 3 states. [2020-09-04 16:32:54,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:54,965 INFO L93 Difference]: Finished difference Result 3881 states and 4762 transitions. [2020-09-04 16:32:54,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:54,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-09-04 16:32:54,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:54,981 INFO L225 Difference]: With dead ends: 3881 [2020-09-04 16:32:54,981 INFO L226 Difference]: Without dead ends: 2940 [2020-09-04 16:32:54,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:54,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2020-09-04 16:32:55,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2020-09-04 16:32:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2940 states. [2020-09-04 16:32:55,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3582 transitions. [2020-09-04 16:32:55,307 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3582 transitions. Word has length 215 [2020-09-04 16:32:55,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:55,308 INFO L479 AbstractCegarLoop]: Abstraction has 2940 states and 3582 transitions. [2020-09-04 16:32:55,309 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:55,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3582 transitions. [2020-09-04 16:32:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-04 16:32:55,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:55,320 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] [2020-09-04 16:32:55,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 16:32:55,320 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:55,321 INFO L82 PathProgramCache]: Analyzing trace with hash -2117708685, now seen corresponding path program 1 times [2020-09-04 16:32:55,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:55,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [423216082] [2020-09-04 16:32:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:55,329 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:55,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:55,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [423216082] [2020-09-04 16:32:55,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:55,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:55,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893556386] [2020-09-04 16:32:55,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:55,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:55,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:55,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:55,464 INFO L87 Difference]: Start difference. First operand 2940 states and 3582 transitions. Second operand 3 states. [2020-09-04 16:32:56,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:56,027 INFO L93 Difference]: Finished difference Result 6394 states and 8046 transitions. [2020-09-04 16:32:56,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:56,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-09-04 16:32:56,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:56,044 INFO L225 Difference]: With dead ends: 6394 [2020-09-04 16:32:56,044 INFO L226 Difference]: Without dead ends: 3603 [2020-09-04 16:32:56,051 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:56,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2020-09-04 16:32:56,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 3417. [2020-09-04 16:32:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3417 states. [2020-09-04 16:32:56,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3417 states to 3417 states and 4098 transitions. [2020-09-04 16:32:56,375 INFO L78 Accepts]: Start accepts. Automaton has 3417 states and 4098 transitions. Word has length 225 [2020-09-04 16:32:56,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:56,376 INFO L479 AbstractCegarLoop]: Abstraction has 3417 states and 4098 transitions. [2020-09-04 16:32:56,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:56,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3417 states and 4098 transitions. [2020-09-04 16:32:56,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-09-04 16:32:56,383 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:56,383 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] [2020-09-04 16:32:56,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-04 16:32:56,384 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:56,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:56,384 INFO L82 PathProgramCache]: Analyzing trace with hash 333657299, now seen corresponding path program 1 times [2020-09-04 16:32:56,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:56,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123598342] [2020-09-04 16:32:56,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:56,390 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:56,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:56,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:56,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123598342] [2020-09-04 16:32:56,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:56,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:56,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640560662] [2020-09-04 16:32:56,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:56,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:56,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:56,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:56,477 INFO L87 Difference]: Start difference. First operand 3417 states and 4098 transitions. Second operand 3 states. [2020-09-04 16:32:56,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:56,844 INFO L93 Difference]: Finished difference Result 7010 states and 8492 transitions. [2020-09-04 16:32:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:56,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-09-04 16:32:56,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:56,861 INFO L225 Difference]: With dead ends: 7010 [2020-09-04 16:32:56,862 INFO L226 Difference]: Without dead ends: 3754 [2020-09-04 16:32:56,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:56,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2020-09-04 16:32:57,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3630. [2020-09-04 16:32:57,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3630 states. [2020-09-04 16:32:57,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 4326 transitions. [2020-09-04 16:32:57,144 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 4326 transitions. Word has length 225 [2020-09-04 16:32:57,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:57,144 INFO L479 AbstractCegarLoop]: Abstraction has 3630 states and 4326 transitions. [2020-09-04 16:32:57,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 4326 transitions. [2020-09-04 16:32:57,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-04 16:32:57,153 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:57,154 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] [2020-09-04 16:32:57,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-04 16:32:57,154 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:57,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:57,155 INFO L82 PathProgramCache]: Analyzing trace with hash 2067308732, now seen corresponding path program 1 times [2020-09-04 16:32:57,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:57,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502098606] [2020-09-04 16:32:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:57,162 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:57,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:57,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502098606] [2020-09-04 16:32:57,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:57,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:57,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426465289] [2020-09-04 16:32:57,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:57,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:57,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:57,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:57,259 INFO L87 Difference]: Start difference. First operand 3630 states and 4326 transitions. Second operand 3 states. [2020-09-04 16:32:57,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:57,642 INFO L93 Difference]: Finished difference Result 7099 states and 8504 transitions. [2020-09-04 16:32:57,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:57,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-09-04 16:32:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:57,675 INFO L225 Difference]: With dead ends: 7099 [2020-09-04 16:32:57,676 INFO L226 Difference]: Without dead ends: 4779 [2020-09-04 16:32:57,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:57,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2020-09-04 16:32:58,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4779. [2020-09-04 16:32:58,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4779 states. [2020-09-04 16:32:58,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 5705 transitions. [2020-09-04 16:32:58,309 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 5705 transitions. Word has length 240 [2020-09-04 16:32:58,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:58,310 INFO L479 AbstractCegarLoop]: Abstraction has 4779 states and 5705 transitions. [2020-09-04 16:32:58,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 5705 transitions. [2020-09-04 16:32:58,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-04 16:32:58,328 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:58,328 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] [2020-09-04 16:32:58,328 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-04 16:32:58,330 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:58,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:58,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1266606843, now seen corresponding path program 1 times [2020-09-04 16:32:58,331 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:58,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944815338] [2020-09-04 16:32:58,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:58,352 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:58,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:58,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944815338] [2020-09-04 16:32:58,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:58,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:32:58,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32196970] [2020-09-04 16:32:58,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:32:58,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:58,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:32:58,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:58,551 INFO L87 Difference]: Start difference. First operand 4779 states and 5705 transitions. Second operand 3 states. [2020-09-04 16:32:59,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:32:59,046 INFO L93 Difference]: Finished difference Result 9821 states and 11850 transitions. [2020-09-04 16:32:59,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:32:59,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-09-04 16:32:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:32:59,099 INFO L225 Difference]: With dead ends: 9821 [2020-09-04 16:32:59,100 INFO L226 Difference]: Without dead ends: 5203 [2020-09-04 16:32:59,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:32:59,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2020-09-04 16:32:59,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 5095. [2020-09-04 16:32:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5095 states. [2020-09-04 16:32:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 6041 transitions. [2020-09-04 16:32:59,559 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 6041 transitions. Word has length 249 [2020-09-04 16:32:59,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:32:59,560 INFO L479 AbstractCegarLoop]: Abstraction has 5095 states and 6041 transitions. [2020-09-04 16:32:59,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:32:59,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 6041 transitions. [2020-09-04 16:32:59,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-09-04 16:32:59,570 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:32:59,571 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] [2020-09-04 16:32:59,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-04 16:32:59,571 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:32:59,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:32:59,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1378985242, now seen corresponding path program 1 times [2020-09-04 16:32:59,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:32:59,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433308461] [2020-09-04 16:32:59,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:32:59,578 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:32:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:59,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:32:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:32:59,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:32:59,704 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433308461] [2020-09-04 16:32:59,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:32:59,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:32:59,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200810812] [2020-09-04 16:32:59,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:32:59,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:32:59,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:32:59,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:32:59,706 INFO L87 Difference]: Start difference. First operand 5095 states and 6041 transitions. Second operand 5 states. [2020-09-04 16:33:00,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:00,741 INFO L93 Difference]: Finished difference Result 12453 states and 15078 transitions. [2020-09-04 16:33:00,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:00,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-09-04 16:33:00,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:00,765 INFO L225 Difference]: With dead ends: 12453 [2020-09-04 16:33:00,765 INFO L226 Difference]: Without dead ends: 7519 [2020-09-04 16:33:00,779 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 [2020-09-04 16:33:00,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7519 states. [2020-09-04 16:33:01,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7519 to 5852. [2020-09-04 16:33:01,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5852 states. [2020-09-04 16:33:01,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5852 states to 5852 states and 6925 transitions. [2020-09-04 16:33:01,157 INFO L78 Accepts]: Start accepts. Automaton has 5852 states and 6925 transitions. Word has length 268 [2020-09-04 16:33:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:01,158 INFO L479 AbstractCegarLoop]: Abstraction has 5852 states and 6925 transitions. [2020-09-04 16:33:01,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:33:01,158 INFO L276 IsEmpty]: Start isEmpty. Operand 5852 states and 6925 transitions. [2020-09-04 16:33:01,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-04 16:33:01,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:01,171 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] [2020-09-04 16:33:01,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-04 16:33:01,172 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:01,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:01,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1330691005, now seen corresponding path program 2 times [2020-09-04 16:33:01,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:01,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885223215] [2020-09-04 16:33:01,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:01,185 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:01,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:01,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885223215] [2020-09-04 16:33:01,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:01,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:33:01,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094962432] [2020-09-04 16:33:01,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:33:01,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:01,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:33:01,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:33:01,325 INFO L87 Difference]: Start difference. First operand 5852 states and 6925 transitions. Second operand 5 states. [2020-09-04 16:33:02,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:02,078 INFO L93 Difference]: Finished difference Result 9945 states and 11708 transitions. [2020-09-04 16:33:02,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:02,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-09-04 16:33:02,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:02,097 INFO L225 Difference]: With dead ends: 9945 [2020-09-04 16:33:02,098 INFO L226 Difference]: Without dead ends: 7016 [2020-09-04 16:33:02,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:33:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7016 states. [2020-09-04 16:33:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7016 to 5852. [2020-09-04 16:33:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5852 states. [2020-09-04 16:33:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5852 states to 5852 states and 6925 transitions. [2020-09-04 16:33:02,674 INFO L78 Accepts]: Start accepts. Automaton has 5852 states and 6925 transitions. Word has length 271 [2020-09-04 16:33:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:02,675 INFO L479 AbstractCegarLoop]: Abstraction has 5852 states and 6925 transitions. [2020-09-04 16:33:02,675 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:33:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 5852 states and 6925 transitions. [2020-09-04 16:33:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-04 16:33:02,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:02,688 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] [2020-09-04 16:33:02,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-04 16:33:02,689 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:02,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:02,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1857770431, now seen corresponding path program 1 times [2020-09-04 16:33:02,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:02,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787097893] [2020-09-04 16:33:02,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:02,698 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:02,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:02,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:02,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787097893] [2020-09-04 16:33:02,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:02,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 16:33:02,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358023571] [2020-09-04 16:33:02,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 16:33:02,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:02,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 16:33:02,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 16:33:02,866 INFO L87 Difference]: Start difference. First operand 5852 states and 6925 transitions. Second operand 4 states. [2020-09-04 16:33:04,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:04,181 INFO L93 Difference]: Finished difference Result 12282 states and 14635 transitions. [2020-09-04 16:33:04,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:33:04,182 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2020-09-04 16:33:04,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:04,207 INFO L225 Difference]: With dead ends: 12282 [2020-09-04 16:33:04,208 INFO L226 Difference]: Without dead ends: 9349 [2020-09-04 16:33:04,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:33:04,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9349 states. [2020-09-04 16:33:04,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9349 to 5924. [2020-09-04 16:33:04,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5924 states. [2020-09-04 16:33:04,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 7013 transitions. [2020-09-04 16:33:04,677 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 7013 transitions. Word has length 271 [2020-09-04 16:33:04,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:04,678 INFO L479 AbstractCegarLoop]: Abstraction has 5924 states and 7013 transitions. [2020-09-04 16:33:04,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 16:33:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 7013 transitions. [2020-09-04 16:33:04,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-09-04 16:33:04,691 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:04,691 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] [2020-09-04 16:33:04,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-04 16:33:04,692 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:04,692 INFO L82 PathProgramCache]: Analyzing trace with hash -417971039, now seen corresponding path program 3 times [2020-09-04 16:33:04,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:04,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828870010] [2020-09-04 16:33:04,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:04,702 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:04,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:04,820 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828870010] [2020-09-04 16:33:04,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:04,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:33:04,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473994999] [2020-09-04 16:33:04,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:33:04,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:04,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:33:04,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:33:04,823 INFO L87 Difference]: Start difference. First operand 5924 states and 7013 transitions. Second operand 5 states. [2020-09-04 16:33:05,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:05,536 INFO L93 Difference]: Finished difference Result 9629 states and 11348 transitions. [2020-09-04 16:33:05,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-04 16:33:05,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-09-04 16:33:05,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:05,562 INFO L225 Difference]: With dead ends: 9629 [2020-09-04 16:33:05,562 INFO L226 Difference]: Without dead ends: 6628 [2020-09-04 16:33:05,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:33:05,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6628 states. [2020-09-04 16:33:06,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6628 to 6004. [2020-09-04 16:33:06,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6004 states. [2020-09-04 16:33:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6004 states to 6004 states and 7101 transitions. [2020-09-04 16:33:06,300 INFO L78 Accepts]: Start accepts. Automaton has 6004 states and 7101 transitions. Word has length 271 [2020-09-04 16:33:06,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:06,300 INFO L479 AbstractCegarLoop]: Abstraction has 6004 states and 7101 transitions. [2020-09-04 16:33:06,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:33:06,301 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states and 7101 transitions. [2020-09-04 16:33:06,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-09-04 16:33:06,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:06,313 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] [2020-09-04 16:33:06,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-04 16:33:06,314 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:06,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:06,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1726538569, now seen corresponding path program 1 times [2020-09-04 16:33:06,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:06,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026178079] [2020-09-04 16:33:06,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:06,322 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:06,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:06,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:33:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:33:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 16:33:06,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026178079] [2020-09-04 16:33:06,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:33:06,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 16:33:06,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283364196] [2020-09-04 16:33:06,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 16:33:06,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:33:06,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 16:33:06,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:06,435 INFO L87 Difference]: Start difference. First operand 6004 states and 7101 transitions. Second operand 3 states. [2020-09-04 16:33:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:33:07,206 INFO L93 Difference]: Finished difference Result 11204 states and 13284 transitions. [2020-09-04 16:33:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 16:33:07,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-09-04 16:33:07,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:33:07,227 INFO L225 Difference]: With dead ends: 11204 [2020-09-04 16:33:07,228 INFO L226 Difference]: Without dead ends: 6816 [2020-09-04 16:33:07,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 16:33:07,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6816 states. [2020-09-04 16:33:07,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6816 to 6816. [2020-09-04 16:33:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6816 states. [2020-09-04 16:33:07,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6816 states to 6816 states and 8055 transitions. [2020-09-04 16:33:07,800 INFO L78 Accepts]: Start accepts. Automaton has 6816 states and 8055 transitions. Word has length 273 [2020-09-04 16:33:07,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:33:07,800 INFO L479 AbstractCegarLoop]: Abstraction has 6816 states and 8055 transitions. [2020-09-04 16:33:07,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 16:33:07,800 INFO L276 IsEmpty]: Start isEmpty. Operand 6816 states and 8055 transitions. [2020-09-04 16:33:07,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-09-04 16:33:07,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:33:07,807 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] [2020-09-04 16:33:07,807 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-04 16:33:07,807 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:33:07,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:33:07,808 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-09-04 16:33:07,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:33:07,808 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036963198] [2020-09-04 16:33:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:33:07,816 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:33:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:33:07,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:33:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 16:33:07,898 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 16:33:08,006 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 16:33:08,006 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 16:33:08,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-04 16:33:08,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:33:08 BoogieIcfgContainer [2020-09-04 16:33:08,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:33:08,047 INFO L168 Benchmark]: Toolchain (without parser) took 20904.32 ms. Allocated memory was 139.5 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 101.3 MB in the beginning and 985.7 MB in the end (delta: -884.4 MB). Peak memory consumption was 241.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:08,047 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-04 16:33:08,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 618.77 ms. Allocated memory was 139.5 MB in the beginning and 205.0 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 180.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:08,049 INFO L168 Benchmark]: Boogie Preprocessor took 71.02 ms. Allocated memory is still 205.0 MB. Free memory was 180.1 MB in the beginning and 177.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:08,049 INFO L168 Benchmark]: RCFGBuilder took 1072.56 ms. Allocated memory is still 205.0 MB. Free memory was 177.9 MB in the beginning and 113.5 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:08,050 INFO L168 Benchmark]: TraceAbstraction took 19135.17 ms. Allocated memory was 205.0 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 113.5 MB in the beginning and 985.7 MB in the end (delta: -872.2 MB). Peak memory consumption was 187.9 MB. Max. memory is 7.1 GB. [2020-09-04 16:33:08,052 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 120.8 MB in the beginning and 120.4 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 618.77 ms. Allocated memory was 139.5 MB in the beginning and 205.0 MB in the end (delta: 65.5 MB). Free memory was 101.3 MB in the beginning and 180.1 MB in the end (delta: -78.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 71.02 ms. Allocated memory is still 205.0 MB. Free memory was 180.1 MB in the beginning and 177.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1072.56 ms. Allocated memory is still 205.0 MB. Free memory was 177.9 MB in the beginning and 113.5 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19135.17 ms. Allocated memory was 205.0 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 113.5 MB in the beginning and 985.7 MB in the end (delta: -872.2 MB). Peak memory consumption was 187.9 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 = 1; [L24] int s__debug = __VERIFIER_nondet_int() ; [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L27] int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_int() ; [L28] int s__ctx__stats__sess_connect = __VERIFIER_nondet_int() ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int() ; [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int() ; [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int() ; [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int() ; [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 = __VERIFIER_nondet_int() ; [L54] int tmp___2 = __VERIFIER_nondet_int() ; [L55] int tmp___3 = __VERIFIER_nondet_int() ; [L56] int tmp___4 = __VERIFIER_nondet_int() ; [L57] int tmp___5 = __VERIFIER_nondet_int() ; [L58] int tmp___6 = __VERIFIER_nondet_int() ; [L59] int tmp___7 = __VERIFIER_nondet_int() ; [L60] int tmp___8 = __VERIFIER_nondet_int() ; [L61] int tmp___9 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] 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 [L257] COND FALSE !(ret <= 0) [L260] s__state = 4384 [L261] s__init_num = 0 [L262] 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 [L268] ret = __VERIFIER_nondet_int() [L269] COND TRUE blastFlag == 1 [L270] blastFlag = 2 [L272] COND FALSE !(ret <= 0) [L275] COND FALSE !(\read(s__hit)) [L278] s__state = 4400 [L280] 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 [L285] __cil_tmp56 = (unsigned long )s__s3__tmp__new_cipher__algorithms [L286] COND FALSE !(__cil_tmp56 - 256UL) [L289] ret = __VERIFIER_nondet_int() [L290] COND TRUE blastFlag == 2 [L291] 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, 385 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.0s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8564 SDtfs, 5208 SDslu, 9268 SDs, 0 SdLazy, 2087 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s 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=6816occurred 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: 5.6s AutomataMinimizationTime, 19 MinimizatonAttempts, 7407 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...