/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 0.1.25-86f66a4 [2020-07-07 13:20:46,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:20:46,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:20:46,808 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-07 13:20:46,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:20:46,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:20:46,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:20:46,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:20:46,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:20:46,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:20:46,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:20:46,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:20:46,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:20:46,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:20:46,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:20:46,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:20:46,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:20:46,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:20:46,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:20:46,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:20:46,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:20:46,908 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:20:46,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:20:46,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:20:46,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:20:46,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:20:46,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:20:46,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:20:46,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:20:46,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:20:46,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:20:46,912 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:20:46,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:20:46,912 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:20:46,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:20:46,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:20:46,913 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:20:46,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:20:46,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:20:46,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:20:46,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:20:46,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:20:46,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:20:46,914 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:20:47,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:20:47,247 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:20:47,251 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:20:47,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:20:47,253 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:20:47,254 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-07-07 13:20:47,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20c27e2ca/26c378211e504c94ab231aed169fc070/FLAGae175e4d4 [2020-07-07 13:20:47,910 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:20:47,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_clnt_2.cil-1.c [2020-07-07 13:20:47,925 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20c27e2ca/26c378211e504c94ab231aed169fc070/FLAGae175e4d4 [2020-07-07 13:20:48,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20c27e2ca/26c378211e504c94ab231aed169fc070 [2020-07-07 13:20:48,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:20:48,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:20:48,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:20:48,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:20:48,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:20:48,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268ec4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48, skipping insertion in model container [2020-07-07 13:20:48,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:20:48,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:20:48,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:20:48,563 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:20:48,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:20:48,756 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:20:48,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48 WrapperNode [2020-07-07 13:20:48,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:20:48,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:20:48,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:20:48,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:20:48,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (1/1) ... [2020-07-07 13:20:48,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:20:48,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:20:48,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:20:48,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:20:48,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-07 13:20:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:20:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:20:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-07-07 13:20:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:20:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:20:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-07 13:20:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:20:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-07 13:20:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-07-07 13:20:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:20:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:20:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:20:49,018 WARN L775 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-07-07 13:20:49,865 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-07-07 13:20:49,865 INFO L728 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-07-07 13:20:49,889 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:20:49,890 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:20:49,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:20:49 BoogieIcfgContainer [2020-07-07 13:20:49,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:20:49,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:20:49,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:20:49,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:20:49,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:20:48" (1/3) ... [2020-07-07 13:20:49,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafcbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:20:49, skipping insertion in model container [2020-07-07 13:20:49,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:20:48" (2/3) ... [2020-07-07 13:20:49,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bafcbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:20:49, skipping insertion in model container [2020-07-07 13:20:49,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:20:49" (3/3) ... [2020-07-07 13:20:49,907 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.cil-1.c [2020-07-07 13:20:49,919 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:20:49,928 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:20:49,944 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:20:49,968 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:20:49,968 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:20:49,969 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:20:49,969 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:20:49,969 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:20:49,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:20:49,970 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:20:49,970 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:20:49,993 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states. [2020-07-07 13:20:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-07 13:20:50,017 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:50,019 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] [2020-07-07 13:20:50,019 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:50,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:50,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1688119681, now seen corresponding path program 1 times [2020-07-07 13:20:50,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:50,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042618028] [2020-07-07 13:20:50,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:50,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:50,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:50,591 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:50,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042618028] [2020-07-07 13:20:50,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:50,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:20:50,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465713442] [2020-07-07 13:20:50,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:20:50,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:50,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:20:50,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:20:50,623 INFO L87 Difference]: Start difference. First operand 385 states. Second operand 6 states. [2020-07-07 13:20:51,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:51,147 INFO L93 Difference]: Finished difference Result 689 states and 904 transitions. [2020-07-07 13:20:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:20:51,150 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2020-07-07 13:20:51,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:51,170 INFO L225 Difference]: With dead ends: 689 [2020-07-07 13:20:51,170 INFO L226 Difference]: Without dead ends: 364 [2020-07-07 13:20:51,177 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 [2020-07-07 13:20:51,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-07-07 13:20:51,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 349. [2020-07-07 13:20:51,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-07 13:20:51,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 408 transitions. [2020-07-07 13:20:51,271 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 408 transitions. Word has length 161 [2020-07-07 13:20:51,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:51,272 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 408 transitions. [2020-07-07 13:20:51,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:20:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 408 transitions. [2020-07-07 13:20:51,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-07-07 13:20:51,277 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:51,278 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] [2020-07-07 13:20:51,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:20:51,278 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:51,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:51,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1044760098, now seen corresponding path program 1 times [2020-07-07 13:20:51,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:51,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744033490] [2020-07-07 13:20:51,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:51,617 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:51,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744033490] [2020-07-07 13:20:51,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:51,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 13:20:51,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936327321] [2020-07-07 13:20:51,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 13:20:51,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:51,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 13:20:51,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:20:51,621 INFO L87 Difference]: Start difference. First operand 349 states and 408 transitions. Second operand 6 states. [2020-07-07 13:20:51,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:51,984 INFO L93 Difference]: Finished difference Result 610 states and 760 transitions. [2020-07-07 13:20:51,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:20:51,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 180 [2020-07-07 13:20:51,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:51,992 INFO L225 Difference]: With dead ends: 610 [2020-07-07 13:20:51,992 INFO L226 Difference]: Without dead ends: 407 [2020-07-07 13:20:51,999 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 [2020-07-07 13:20:52,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-07-07 13:20:52,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 362. [2020-07-07 13:20:52,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-07-07 13:20:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 426 transitions. [2020-07-07 13:20:52,065 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 426 transitions. Word has length 180 [2020-07-07 13:20:52,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:52,066 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 426 transitions. [2020-07-07 13:20:52,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 13:20:52,067 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 426 transitions. [2020-07-07 13:20:52,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-07-07 13:20:52,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:52,074 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] [2020-07-07 13:20:52,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:20:52,075 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:52,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:52,075 INFO L82 PathProgramCache]: Analyzing trace with hash -975331194, now seen corresponding path program 1 times [2020-07-07 13:20:52,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:52,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [780454769] [2020-07-07 13:20:52,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:52,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:52,253 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:52,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [780454769] [2020-07-07 13:20:52,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:52,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:52,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900180506] [2020-07-07 13:20:52,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:52,256 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:52,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:52,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:52,257 INFO L87 Difference]: Start difference. First operand 362 states and 426 transitions. Second operand 3 states. [2020-07-07 13:20:52,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:52,471 INFO L93 Difference]: Finished difference Result 608 states and 743 transitions. [2020-07-07 13:20:52,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:52,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-07-07 13:20:52,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:52,475 INFO L225 Difference]: With dead ends: 608 [2020-07-07 13:20:52,476 INFO L226 Difference]: Without dead ends: 392 [2020-07-07 13:20:52,477 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 [2020-07-07 13:20:52,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-07-07 13:20:52,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 380. [2020-07-07 13:20:52,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-07-07 13:20:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 449 transitions. [2020-07-07 13:20:52,527 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 449 transitions. Word has length 184 [2020-07-07 13:20:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:52,528 INFO L479 AbstractCegarLoop]: Abstraction has 380 states and 449 transitions. [2020-07-07 13:20:52,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 449 transitions. [2020-07-07 13:20:52,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-07 13:20:52,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:52,534 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] [2020-07-07 13:20:52,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:20:52,534 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:52,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:52,535 INFO L82 PathProgramCache]: Analyzing trace with hash 103747241, now seen corresponding path program 1 times [2020-07-07 13:20:52,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:52,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1110125626] [2020-07-07 13:20:52,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:52,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:52,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:52,709 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:52,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1110125626] [2020-07-07 13:20:52,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:52,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:52,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638730909] [2020-07-07 13:20:52,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:52,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:52,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:52,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:52,713 INFO L87 Difference]: Start difference. First operand 380 states and 449 transitions. Second operand 3 states. [2020-07-07 13:20:52,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:52,852 INFO L93 Difference]: Finished difference Result 841 states and 1041 transitions. [2020-07-07 13:20:52,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:52,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2020-07-07 13:20:52,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:52,858 INFO L225 Difference]: With dead ends: 841 [2020-07-07 13:20:52,858 INFO L226 Difference]: Without dead ends: 607 [2020-07-07 13:20:52,860 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 [2020-07-07 13:20:52,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-07-07 13:20:52,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2020-07-07 13:20:52,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2020-07-07 13:20:52,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 737 transitions. [2020-07-07 13:20:52,947 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 737 transitions. Word has length 191 [2020-07-07 13:20:52,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:52,948 INFO L479 AbstractCegarLoop]: Abstraction has 607 states and 737 transitions. [2020-07-07 13:20:52,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:52,948 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 737 transitions. [2020-07-07 13:20:52,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-07-07 13:20:52,954 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:52,955 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] [2020-07-07 13:20:52,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:20:52,955 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:52,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:52,956 INFO L82 PathProgramCache]: Analyzing trace with hash -574346418, now seen corresponding path program 1 times [2020-07-07 13:20:52,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:52,957 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084916647] [2020-07-07 13:20:52,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:53,100 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:53,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084916647] [2020-07-07 13:20:53,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:53,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:53,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969771798] [2020-07-07 13:20:53,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:53,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:53,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:53,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:53,103 INFO L87 Difference]: Start difference. First operand 607 states and 737 transitions. Second operand 3 states. [2020-07-07 13:20:53,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:53,405 INFO L93 Difference]: Finished difference Result 1129 states and 1410 transitions. [2020-07-07 13:20:53,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:53,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-07-07 13:20:53,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:53,409 INFO L225 Difference]: With dead ends: 1129 [2020-07-07 13:20:53,410 INFO L226 Difference]: Without dead ends: 668 [2020-07-07 13:20:53,411 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 [2020-07-07 13:20:53,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-07-07 13:20:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 647. [2020-07-07 13:20:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 647 states. [2020-07-07 13:20:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 787 transitions. [2020-07-07 13:20:53,477 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 787 transitions. Word has length 204 [2020-07-07 13:20:53,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:53,477 INFO L479 AbstractCegarLoop]: Abstraction has 647 states and 787 transitions. [2020-07-07 13:20:53,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:53,478 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 787 transitions. [2020-07-07 13:20:53,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-07 13:20:53,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:53,482 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] [2020-07-07 13:20:53,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:20:53,482 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:53,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:53,483 INFO L82 PathProgramCache]: Analyzing trace with hash -375106847, now seen corresponding path program 1 times [2020-07-07 13:20:53,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:53,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953656934] [2020-07-07 13:20:53,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:53,595 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:53,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953656934] [2020-07-07 13:20:53,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:53,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:53,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542369882] [2020-07-07 13:20:53,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:53,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:53,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:53,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:53,600 INFO L87 Difference]: Start difference. First operand 647 states and 787 transitions. Second operand 3 states. [2020-07-07 13:20:53,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:53,734 INFO L93 Difference]: Finished difference Result 1579 states and 1959 transitions. [2020-07-07 13:20:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:53,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-07-07 13:20:53,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:53,741 INFO L225 Difference]: With dead ends: 1579 [2020-07-07 13:20:53,742 INFO L226 Difference]: Without dead ends: 1078 [2020-07-07 13:20:53,744 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 [2020-07-07 13:20:53,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2020-07-07 13:20:53,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1076. [2020-07-07 13:20:53,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1076 states. [2020-07-07 13:20:53,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1076 states to 1076 states and 1313 transitions. [2020-07-07 13:20:53,879 INFO L78 Accepts]: Start accepts. Automaton has 1076 states and 1313 transitions. Word has length 211 [2020-07-07 13:20:53,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:53,880 INFO L479 AbstractCegarLoop]: Abstraction has 1076 states and 1313 transitions. [2020-07-07 13:20:53,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:53,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1076 states and 1313 transitions. [2020-07-07 13:20:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-07 13:20:53,893 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:53,894 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] [2020-07-07 13:20:53,894 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:20:53,894 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:53,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:53,895 INFO L82 PathProgramCache]: Analyzing trace with hash 743106501, now seen corresponding path program 1 times [2020-07-07 13:20:53,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:53,896 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [496545150] [2020-07-07 13:20:53,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:53,987 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:53,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [496545150] [2020-07-07 13:20:53,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:53,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:53,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070739427] [2020-07-07 13:20:53,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:53,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:53,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:53,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:53,990 INFO L87 Difference]: Start difference. First operand 1076 states and 1313 transitions. Second operand 3 states. [2020-07-07 13:20:54,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:54,159 INFO L93 Difference]: Finished difference Result 2024 states and 2498 transitions. [2020-07-07 13:20:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:54,160 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-07-07 13:20:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:54,169 INFO L225 Difference]: With dead ends: 2024 [2020-07-07 13:20:54,169 INFO L226 Difference]: Without dead ends: 1094 [2020-07-07 13:20:54,173 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 [2020-07-07 13:20:54,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2020-07-07 13:20:54,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1084. [2020-07-07 13:20:54,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1084 states. [2020-07-07 13:20:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1317 transitions. [2020-07-07 13:20:54,347 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1317 transitions. Word has length 212 [2020-07-07 13:20:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:54,348 INFO L479 AbstractCegarLoop]: Abstraction has 1084 states and 1317 transitions. [2020-07-07 13:20:54,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1317 transitions. [2020-07-07 13:20:54,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-07-07 13:20:54,355 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:54,356 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] [2020-07-07 13:20:54,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:20:54,357 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:54,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:54,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1288323979, now seen corresponding path program 1 times [2020-07-07 13:20:54,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:54,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801892025] [2020-07-07 13:20:54,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:54,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:54,561 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:54,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801892025] [2020-07-07 13:20:54,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:54,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:54,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359450120] [2020-07-07 13:20:54,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:54,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:54,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:54,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:54,565 INFO L87 Difference]: Start difference. First operand 1084 states and 1317 transitions. Second operand 3 states. [2020-07-07 13:20:54,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:54,943 INFO L93 Difference]: Finished difference Result 2946 states and 3629 transitions. [2020-07-07 13:20:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:54,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-07-07 13:20:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:54,960 INFO L225 Difference]: With dead ends: 2946 [2020-07-07 13:20:54,960 INFO L226 Difference]: Without dead ends: 2008 [2020-07-07 13:20:54,965 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 [2020-07-07 13:20:54,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2020-07-07 13:20:55,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2006. [2020-07-07 13:20:55,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2006 states. [2020-07-07 13:20:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2449 transitions. [2020-07-07 13:20:55,364 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2449 transitions. Word has length 214 [2020-07-07 13:20:55,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:55,365 INFO L479 AbstractCegarLoop]: Abstraction has 2006 states and 2449 transitions. [2020-07-07 13:20:55,366 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:55,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2449 transitions. [2020-07-07 13:20:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-07-07 13:20:55,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:55,375 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] [2020-07-07 13:20:55,376 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 13:20:55,376 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:55,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:55,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1320463479, now seen corresponding path program 1 times [2020-07-07 13:20:55,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:55,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096793751] [2020-07-07 13:20:55,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:55,565 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:55,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096793751] [2020-07-07 13:20:55,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:55,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:55,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262634672] [2020-07-07 13:20:55,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:55,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:55,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:55,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:55,575 INFO L87 Difference]: Start difference. First operand 2006 states and 2449 transitions. Second operand 3 states. [2020-07-07 13:20:55,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:55,912 INFO L93 Difference]: Finished difference Result 2961 states and 3623 transitions. [2020-07-07 13:20:55,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:55,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-07-07 13:20:55,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:55,927 INFO L225 Difference]: With dead ends: 2961 [2020-07-07 13:20:55,928 INFO L226 Difference]: Without dead ends: 2023 [2020-07-07 13:20:55,934 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 [2020-07-07 13:20:55,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2023 states. [2020-07-07 13:20:56,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2023 to 2021. [2020-07-07 13:20:56,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2021 states. [2020-07-07 13:20:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2021 states to 2021 states and 2455 transitions. [2020-07-07 13:20:56,261 INFO L78 Accepts]: Start accepts. Automaton has 2021 states and 2455 transitions. Word has length 214 [2020-07-07 13:20:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:56,262 INFO L479 AbstractCegarLoop]: Abstraction has 2021 states and 2455 transitions. [2020-07-07 13:20:56,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2021 states and 2455 transitions. [2020-07-07 13:20:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-07-07 13:20:56,301 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:56,301 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] [2020-07-07 13:20:56,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 13:20:56,302 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:56,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:56,302 INFO L82 PathProgramCache]: Analyzing trace with hash -955395695, now seen corresponding path program 1 times [2020-07-07 13:20:56,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:56,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1734594150] [2020-07-07 13:20:56,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:56,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:56,444 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:56,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1734594150] [2020-07-07 13:20:56,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:56,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:56,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027661174] [2020-07-07 13:20:56,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:56,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:56,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:56,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:56,447 INFO L87 Difference]: Start difference. First operand 2021 states and 2455 transitions. Second operand 3 states. [2020-07-07 13:20:56,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:56,878 INFO L93 Difference]: Finished difference Result 3881 states and 4762 transitions. [2020-07-07 13:20:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:56,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-07-07 13:20:56,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:56,895 INFO L225 Difference]: With dead ends: 3881 [2020-07-07 13:20:56,896 INFO L226 Difference]: Without dead ends: 2940 [2020-07-07 13:20:56,900 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 [2020-07-07 13:20:56,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2020-07-07 13:20:57,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2940. [2020-07-07 13:20:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2940 states. [2020-07-07 13:20:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 3582 transitions. [2020-07-07 13:20:57,258 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 3582 transitions. Word has length 215 [2020-07-07 13:20:57,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:57,258 INFO L479 AbstractCegarLoop]: Abstraction has 2940 states and 3582 transitions. [2020-07-07 13:20:57,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:57,259 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 3582 transitions. [2020-07-07 13:20:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-07-07 13:20:57,265 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:57,265 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] [2020-07-07 13:20:57,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 13:20:57,266 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:57,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:57,267 INFO L82 PathProgramCache]: Analyzing trace with hash -2117708685, now seen corresponding path program 1 times [2020-07-07 13:20:57,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:57,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308576898] [2020-07-07 13:20:57,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:57,383 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:57,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308576898] [2020-07-07 13:20:57,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:57,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:57,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003794985] [2020-07-07 13:20:57,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:57,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:57,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:57,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:57,387 INFO L87 Difference]: Start difference. First operand 2940 states and 3582 transitions. Second operand 3 states. [2020-07-07 13:20:58,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:58,076 INFO L93 Difference]: Finished difference Result 6394 states and 8046 transitions. [2020-07-07 13:20:58,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:58,077 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-07-07 13:20:58,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:58,110 INFO L225 Difference]: With dead ends: 6394 [2020-07-07 13:20:58,110 INFO L226 Difference]: Without dead ends: 3603 [2020-07-07 13:20:58,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3603 states. [2020-07-07 13:20:58,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3603 to 3417. [2020-07-07 13:20:58,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3417 states. [2020-07-07 13:20:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3417 states to 3417 states and 4098 transitions. [2020-07-07 13:20:58,551 INFO L78 Accepts]: Start accepts. Automaton has 3417 states and 4098 transitions. Word has length 225 [2020-07-07 13:20:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:58,552 INFO L479 AbstractCegarLoop]: Abstraction has 3417 states and 4098 transitions. [2020-07-07 13:20:58,552 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3417 states and 4098 transitions. [2020-07-07 13:20:58,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-07-07 13:20:58,563 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:58,564 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] [2020-07-07 13:20:58,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 13:20:58,564 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:58,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:58,565 INFO L82 PathProgramCache]: Analyzing trace with hash 333657299, now seen corresponding path program 1 times [2020-07-07 13:20:58,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:58,566 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639162885] [2020-07-07 13:20:58,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:58,669 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:58,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639162885] [2020-07-07 13:20:58,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:58,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:58,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877897452] [2020-07-07 13:20:58,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:58,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:58,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:58,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:58,672 INFO L87 Difference]: Start difference. First operand 3417 states and 4098 transitions. Second operand 3 states. [2020-07-07 13:20:59,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:20:59,173 INFO L93 Difference]: Finished difference Result 7010 states and 8492 transitions. [2020-07-07 13:20:59,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:20:59,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2020-07-07 13:20:59,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:20:59,194 INFO L225 Difference]: With dead ends: 7010 [2020-07-07 13:20:59,194 INFO L226 Difference]: Without dead ends: 3754 [2020-07-07 13:20:59,202 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 [2020-07-07 13:20:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2020-07-07 13:20:59,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3630. [2020-07-07 13:20:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3630 states. [2020-07-07 13:20:59,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 4326 transitions. [2020-07-07 13:20:59,582 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 4326 transitions. Word has length 225 [2020-07-07 13:20:59,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:20:59,583 INFO L479 AbstractCegarLoop]: Abstraction has 3630 states and 4326 transitions. [2020-07-07 13:20:59,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:20:59,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 4326 transitions. [2020-07-07 13:20:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-07 13:20:59,597 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:20:59,598 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] [2020-07-07 13:20:59,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 13:20:59,598 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:20:59,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:20:59,599 INFO L82 PathProgramCache]: Analyzing trace with hash 2067308732, now seen corresponding path program 1 times [2020-07-07 13:20:59,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:20:59,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045387951] [2020-07-07 13:20:59,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:20:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:59,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:20:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:20:59,747 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:20:59,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045387951] [2020-07-07 13:20:59,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:20:59,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:20:59,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420224109] [2020-07-07 13:20:59,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:20:59,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:20:59,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:20:59,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:20:59,749 INFO L87 Difference]: Start difference. First operand 3630 states and 4326 transitions. Second operand 3 states. [2020-07-07 13:21:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:00,316 INFO L93 Difference]: Finished difference Result 7099 states and 8504 transitions. [2020-07-07 13:21:00,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:00,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-07-07 13:21:00,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:00,340 INFO L225 Difference]: With dead ends: 7099 [2020-07-07 13:21:00,340 INFO L226 Difference]: Without dead ends: 4779 [2020-07-07 13:21:00,347 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 [2020-07-07 13:21:00,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2020-07-07 13:21:00,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4779. [2020-07-07 13:21:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4779 states. [2020-07-07 13:21:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4779 states to 4779 states and 5705 transitions. [2020-07-07 13:21:00,824 INFO L78 Accepts]: Start accepts. Automaton has 4779 states and 5705 transitions. Word has length 240 [2020-07-07 13:21:00,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:00,825 INFO L479 AbstractCegarLoop]: Abstraction has 4779 states and 5705 transitions. [2020-07-07 13:21:00,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4779 states and 5705 transitions. [2020-07-07 13:21:00,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-07-07 13:21:00,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:00,837 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] [2020-07-07 13:21:00,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 13:21:00,837 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:00,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:00,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1266606843, now seen corresponding path program 1 times [2020-07-07 13:21:00,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:00,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820467934] [2020-07-07 13:21:00,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:00,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:00,976 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:00,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820467934] [2020-07-07 13:21:00,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:00,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:00,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497780266] [2020-07-07 13:21:00,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:00,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:00,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:00,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:00,979 INFO L87 Difference]: Start difference. First operand 4779 states and 5705 transitions. Second operand 3 states. [2020-07-07 13:21:01,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:01,538 INFO L93 Difference]: Finished difference Result 9821 states and 11850 transitions. [2020-07-07 13:21:01,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:01,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-07-07 13:21:01,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:01,584 INFO L225 Difference]: With dead ends: 9821 [2020-07-07 13:21:01,584 INFO L226 Difference]: Without dead ends: 5203 [2020-07-07 13:21:01,596 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 [2020-07-07 13:21:01,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2020-07-07 13:21:01,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 5095. [2020-07-07 13:21:01,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5095 states. [2020-07-07 13:21:01,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 6041 transitions. [2020-07-07 13:21:01,961 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 6041 transitions. Word has length 249 [2020-07-07 13:21:01,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:01,962 INFO L479 AbstractCegarLoop]: Abstraction has 5095 states and 6041 transitions. [2020-07-07 13:21:01,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:01,962 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 6041 transitions. [2020-07-07 13:21:01,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-07-07 13:21:01,980 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:01,980 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] [2020-07-07 13:21:01,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 13:21:01,980 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:01,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:01,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1378985242, now seen corresponding path program 1 times [2020-07-07 13:21:01,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:01,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047644631] [2020-07-07 13:21:01,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:02,177 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:02,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047644631] [2020-07-07 13:21:02,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:02,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:21:02,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280607819] [2020-07-07 13:21:02,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:21:02,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:02,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:21:02,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:21:02,179 INFO L87 Difference]: Start difference. First operand 5095 states and 6041 transitions. Second operand 5 states. [2020-07-07 13:21:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:02,997 INFO L93 Difference]: Finished difference Result 12453 states and 15078 transitions. [2020-07-07 13:21:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:21:02,997 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 268 [2020-07-07 13:21:02,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:03,017 INFO L225 Difference]: With dead ends: 12453 [2020-07-07 13:21:03,017 INFO L226 Difference]: Without dead ends: 7519 [2020-07-07 13:21:03,031 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 [2020-07-07 13:21:03,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7519 states. [2020-07-07 13:21:03,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7519 to 5852. [2020-07-07 13:21:03,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5852 states. [2020-07-07 13:21:03,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5852 states to 5852 states and 6925 transitions. [2020-07-07 13:21:03,638 INFO L78 Accepts]: Start accepts. Automaton has 5852 states and 6925 transitions. Word has length 268 [2020-07-07 13:21:03,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:03,638 INFO L479 AbstractCegarLoop]: Abstraction has 5852 states and 6925 transitions. [2020-07-07 13:21:03,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:21:03,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5852 states and 6925 transitions. [2020-07-07 13:21:03,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-07 13:21:03,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:03,654 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] [2020-07-07 13:21:03,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-07 13:21:03,654 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:03,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:03,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1330691005, now seen corresponding path program 2 times [2020-07-07 13:21:03,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:03,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1848761468] [2020-07-07 13:21:03,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:03,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:03,787 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:03,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1848761468] [2020-07-07 13:21:03,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:03,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:21:03,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500253703] [2020-07-07 13:21:03,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:21:03,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:03,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:21:03,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:21:03,789 INFO L87 Difference]: Start difference. First operand 5852 states and 6925 transitions. Second operand 5 states. [2020-07-07 13:21:04,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:04,530 INFO L93 Difference]: Finished difference Result 9945 states and 11708 transitions. [2020-07-07 13:21:04,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:21:04,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-07-07 13:21:04,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:04,546 INFO L225 Difference]: With dead ends: 9945 [2020-07-07 13:21:04,546 INFO L226 Difference]: Without dead ends: 7016 [2020-07-07 13:21:04,555 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 [2020-07-07 13:21:04,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7016 states. [2020-07-07 13:21:04,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7016 to 5852. [2020-07-07 13:21:04,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5852 states. [2020-07-07 13:21:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5852 states to 5852 states and 6925 transitions. [2020-07-07 13:21:05,016 INFO L78 Accepts]: Start accepts. Automaton has 5852 states and 6925 transitions. Word has length 271 [2020-07-07 13:21:05,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:05,017 INFO L479 AbstractCegarLoop]: Abstraction has 5852 states and 6925 transitions. [2020-07-07 13:21:05,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:21:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5852 states and 6925 transitions. [2020-07-07 13:21:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-07 13:21:05,031 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:05,031 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] [2020-07-07 13:21:05,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-07 13:21:05,032 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:05,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:05,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1857770431, now seen corresponding path program 1 times [2020-07-07 13:21:05,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:05,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279930040] [2020-07-07 13:21:05,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:05,140 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:05,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279930040] [2020-07-07 13:21:05,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:05,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 13:21:05,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060452391] [2020-07-07 13:21:05,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 13:21:05,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:05,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 13:21:05,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 13:21:05,143 INFO L87 Difference]: Start difference. First operand 5852 states and 6925 transitions. Second operand 4 states. [2020-07-07 13:21:06,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:06,414 INFO L93 Difference]: Finished difference Result 12282 states and 14635 transitions. [2020-07-07 13:21:06,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 13:21:06,415 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2020-07-07 13:21:06,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:06,431 INFO L225 Difference]: With dead ends: 12282 [2020-07-07 13:21:06,431 INFO L226 Difference]: Without dead ends: 9349 [2020-07-07 13:21:06,442 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 [2020-07-07 13:21:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9349 states. [2020-07-07 13:21:07,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9349 to 5924. [2020-07-07 13:21:07,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5924 states. [2020-07-07 13:21:07,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5924 states to 5924 states and 7013 transitions. [2020-07-07 13:21:07,113 INFO L78 Accepts]: Start accepts. Automaton has 5924 states and 7013 transitions. Word has length 271 [2020-07-07 13:21:07,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:07,113 INFO L479 AbstractCegarLoop]: Abstraction has 5924 states and 7013 transitions. [2020-07-07 13:21:07,114 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 13:21:07,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5924 states and 7013 transitions. [2020-07-07 13:21:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-07-07 13:21:07,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:07,128 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] [2020-07-07 13:21:07,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-07 13:21:07,128 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:07,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:07,129 INFO L82 PathProgramCache]: Analyzing trace with hash -417971039, now seen corresponding path program 3 times [2020-07-07 13:21:07,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:07,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431283912] [2020-07-07 13:21:07,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:07,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:07,365 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:07,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431283912] [2020-07-07 13:21:07,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:07,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:21:07,366 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849678542] [2020-07-07 13:21:07,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:21:07,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:07,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:21:07,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:21:07,368 INFO L87 Difference]: Start difference. First operand 5924 states and 7013 transitions. Second operand 5 states. [2020-07-07 13:21:08,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:08,299 INFO L93 Difference]: Finished difference Result 9629 states and 11348 transitions. [2020-07-07 13:21:08,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:21:08,300 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 271 [2020-07-07 13:21:08,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:08,313 INFO L225 Difference]: With dead ends: 9629 [2020-07-07 13:21:08,314 INFO L226 Difference]: Without dead ends: 6628 [2020-07-07 13:21:08,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:21:08,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6628 states. [2020-07-07 13:21:08,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6628 to 6004. [2020-07-07 13:21:08,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6004 states. [2020-07-07 13:21:08,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6004 states to 6004 states and 7101 transitions. [2020-07-07 13:21:08,901 INFO L78 Accepts]: Start accepts. Automaton has 6004 states and 7101 transitions. Word has length 271 [2020-07-07 13:21:08,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:08,901 INFO L479 AbstractCegarLoop]: Abstraction has 6004 states and 7101 transitions. [2020-07-07 13:21:08,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:21:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 6004 states and 7101 transitions. [2020-07-07 13:21:08,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2020-07-07 13:21:08,911 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:08,912 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] [2020-07-07 13:21:08,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-07 13:21:08,912 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:08,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:08,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1726538569, now seen corresponding path program 1 times [2020-07-07 13:21:08,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:08,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690202363] [2020-07-07 13:21:08,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:09,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:09,017 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:09,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690202363] [2020-07-07 13:21:09,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:09,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:09,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59779344] [2020-07-07 13:21:09,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:09,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:09,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:09,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:09,019 INFO L87 Difference]: Start difference. First operand 6004 states and 7101 transitions. Second operand 3 states. [2020-07-07 13:21:09,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:09,585 INFO L93 Difference]: Finished difference Result 11204 states and 13284 transitions. [2020-07-07 13:21:09,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:09,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 273 [2020-07-07 13:21:09,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:09,595 INFO L225 Difference]: With dead ends: 11204 [2020-07-07 13:21:09,596 INFO L226 Difference]: Without dead ends: 6816 [2020-07-07 13:21:09,605 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 [2020-07-07 13:21:09,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6816 states. [2020-07-07 13:21:10,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6816 to 6816. [2020-07-07 13:21:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6816 states. [2020-07-07 13:21:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6816 states to 6816 states and 8055 transitions. [2020-07-07 13:21:10,613 INFO L78 Accepts]: Start accepts. Automaton has 6816 states and 8055 transitions. Word has length 273 [2020-07-07 13:21:10,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:10,614 INFO L479 AbstractCegarLoop]: Abstraction has 6816 states and 8055 transitions. [2020-07-07 13:21:10,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:10,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6816 states and 8055 transitions. [2020-07-07 13:21:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-07-07 13:21:10,624 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:10,625 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] [2020-07-07 13:21:10,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-07 13:21:10,625 INFO L427 AbstractCegarLoop]: === Iteration 20 === [ssl3_connectErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:10,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:10,625 INFO L82 PathProgramCache]: Analyzing trace with hash 127538036, now seen corresponding path program 1 times [2020-07-07 13:21:10,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:10,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255247110] [2020-07-07 13:21:10,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:21:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 13:21:10,801 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:10,802 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 13:21:10,802 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 13:21:10,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-07 13:21:10,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:21:10 BoogieIcfgContainer [2020-07-07 13:21:10,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:21:10,840 INFO L168 Benchmark]: Toolchain (without parser) took 22652.11 ms. Allocated memory was 145.8 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 103.5 MB in the beginning and 946.4 MB in the end (delta: -842.9 MB). Peak memory consumption was 182.1 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:10,841 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 13:21:10,841 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.20 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.1 MB in the beginning and 179.6 MB in the end (delta: -76.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:10,842 INFO L168 Benchmark]: Boogie Preprocessor took 55.53 ms. Allocated memory is still 203.4 MB. Free memory was 179.6 MB in the beginning and 176.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:10,843 INFO L168 Benchmark]: RCFGBuilder took 1084.46 ms. Allocated memory is still 203.4 MB. Free memory was 176.9 MB in the beginning and 112.5 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:10,843 INFO L168 Benchmark]: TraceAbstraction took 20938.75 ms. Allocated memory was 203.4 MB in the beginning and 1.2 GB in the end (delta: 967.3 MB). Free memory was 111.9 MB in the beginning and 946.4 MB in the end (delta: -834.6 MB). Peak memory consumption was 132.7 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:10,846 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 568.20 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.1 MB in the beginning and 179.6 MB in the end (delta: -76.5 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 55.53 ms. Allocated memory is still 203.4 MB. Free memory was 179.6 MB in the beginning and 176.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1084.46 ms. Allocated memory is still 203.4 MB. Free memory was 176.9 MB in the beginning and 112.5 MB in the end (delta: 64.4 MB). Peak memory consumption was 64.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20938.75 ms. Allocated memory was 203.4 MB in the beginning and 1.2 GB in the end (delta: 967.3 MB). Free memory was 111.9 MB in the beginning and 946.4 MB in the end (delta: -834.6 MB). Peak memory consumption was 132.7 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: 20.8s, OverallIterations: 20, TraceHistogramMax: 6, AutomataDifference: 10.1s, 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, 0.3s 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: 6.7s 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...